With the Trump administration expected to reverse a controversial 2023 decision on the permanent location of U.S. Space Command, a review by the Defense Department inspector general could not determine why Colorado was chosen over Alabama.

The Army said it has reenlisted three active duty soldiers who were discharged for refusing the COVID-19 vaccine, as it works to implement President Donald Trump’s executive order that troops be rehired and given back pay.

A U.S. official says Defense Secretary Pete Hegseth is beefing up the Navy warship presence in the Middle East, ordering two aircraft carriers to be there next month as the U.S. increases strikes on Yemen-based Houthi rebels.

Officials say roughly 650 Marines and Army soldiers who were forced out of the military for refusing to get the COVID-19 vaccine have so far expressed interest in returning to the force under an executive order from President Donald Trump.

Five former secretaries of defense are calling on Congress to hold immediate hearings on President Donald Trump’s recent firings of the chairman of the Joint Chiefs of Staff and several other senior military leaders.

The Pentagon says the military services must again ask troops who were forced out or who voluntarily left the military due to the COVID vaccine whether they want to reenlist.

U.S. Defense Secretary Pete Hegseth says NATO membership for Ukraine is unrealistic.

Defense Secretary Pete Hegseth did not request more than $137,000 in repairs and upgrades to military housing at Fort McNair that will become his official residence.

U.S. Defense Secretary Pete Hegseth will become on Wednesday the first member of the new Trump administration to visit NATO.

The main international forum for drumming up weapons and ammunition for Ukraine will for the first time meet under the auspices of a country other than the U.S. as uncertainty surrounds the future of Washington’s support for arming the war-torn country.

Newly unsealed documents give one of the most detailed views yet of the evidence gathered on the accused 9/11 mastermind Khalid Sheikh Mohammed, including how prosecutors allege he and others interacted with the hijackers who carried out the Sept. 11, 2001 attacks.

A new memo says the Defense Department will no longer reimburse service members for travel out of state to get reproductive health care, including abortions and fertility treatments.

There will be a lot on the plate for new Defense Secretary Pete Hegseth when he steps into his office on the Pentagon’s third floor E Ring.

It's unclear who'll take over at the Pentagon and the military services when the top leaders all step down Monday as President-elect Donald Trump is sworn into office.

Defense Secretary Lloyd Austin is bidding farewell to the forces and personnel he's led through a tumultuous term.

Defense Secretary Lloyd Austin didn't inform Congress or the White House as required when he was incapacitated due to treatment for prostate cancer or when complications worsened his condition last year.

The outgoing acting director of the National Counterterrorism Center says the U.S. is facing an elevated threat of terrorism.

Pete Hegseth, President-elect Donald Trump’s pick for defense secretary, has publicly faced senators for the first time.

Pete Hegseth will try to convince members of the Senate Armed Services Committee he should be the next secretary of defense.

President Joe Biden's administration says it's expanding sanctions against Russia's critically important energy sector over its war in Ukraine.

The Biden administration has succeeded in temporarily blocking accused 9/11 mastermind Khalid Sheikh Mohammed from entering a guilty plea that would spare him the risk of execution for al-Qaida’s Sept. 11, 2001, attacks.

After 23 years, the fate of the last remaining Guantanamo detainees swept up worldwide after al-Qaida’s shattering attacks on Sept. 11, 2001, is reaching a pivotal moment this month.

Defense Secretary Lloyd Austin told The Associated Press that the U.S. needs to keep troops deployed in Syria to prevent the Islamic State group from reconstituting as a major threat.

The U.S. is set to provide Ukraine an additional $500 million in weapons quickly pulled from its existing stockpiles as the Biden administration works to get Kyiv in a stronger negotiating position before President-elect Donald Trump takes office.

The Biden administration has asked a federal appeals court to block a plea agreement for accused 9/11 mastermind Khalid Sheikh Mohammed that would spare him the risk of the death penalty.

The Biden administration is set to announce a massive, final weapons aid package for Ukraine as part of Defense Secretary Lloyd Austin’s visit to Germany this week to meet with representatives of about 50 partner nations who have come to Ukraine’s defense since Russia invaded nearly three years ago.

A military appeals court has ruled against Defense Secretary Lloyd Austin's effort to throw out the plea deals reached for Khalid Sheikh Mohammed and two other defendants in the 9/11 attacks.

A U.S. Navy warship has arrived in Cambodia, the first such visit in eight years to a nation that is China’s close ally in Southeast Asia.

New Pentagon data shows that reported sexual assaults at the U.S. military academies dropped in 2024 for the second year in a row.

U.S. Defense Secretary Lloyd Austin has met with officials in Japan to reaffirm the importance of their alliance and Washington's commitment to regional security as threats rise from China and North Korea.

The Pentagon is temporarily pausing flights again of its fleet of V-22 Ospreys after weakened metal components were found in a part after another near crash.

Defense Secretary Lloyd Austin has announced that the U.S. will provide nearly $1 billion more in longer-term weapons support to Ukraine.

Pete Hegseth has spent the week on Capitol Hill trying to reassure Republican senators that he is fit to lead President-elect Donald Trump’s Department of Defense in the wake of high-profile allegations about excessive drinking and sexual assault.

Defense Secretary Lloyd Austin is forcefully endorsing having women in combat roles and emphasizing the military’s obligation to defend the U.S. Constitution.

An Osprey flying as part of the presidential squadron used to ferry White House staff and government officials from an event in New York Monday was grounded due to a safety concern, with one witness reporting flames under the right engine.

Southeast Asian defense chiefs are meeting with China, the United States and other partner nations in Laos for security talks, which come as Beijing’s increasingly assertive stance in its claim to most of the South China Sea is leading to more confrontations.

The U.S. decision to provide Ukraine with antipersonnel land mines expands the use of a weapon that the international community has long condemned because of its danger to innocent civilians.

The U.S. defense chief says the Biden administration will give Ukraine antipersonnel land mines to help it slow Russia’s battlefield advances.

U.S. Secretary of Defense Lloyd Austin has expressed regret that his Chinese counterpart chose not to hold talks with him during meetings of Southeast Asian defense chiefs in Laos, calling it a setback for the entire region.

U.S. Defense Secretary Lloyd Austin has condemned China's dangerous actions against the Philippines and renewed a warning that the United States would defend its treaty ally if Filipino forces come under an armed attack in the disputed South China Sea.

The United States and the Philippines have signed an agreement to secure the exchange of highly confidential military intelligence and technology in key weapons the U.S. would provide to Manila.

Typhoon Man-yi has left at least seven people dead in a landslide, destroyed houses and displaced large numbers of villagers before blowing away from the northern Philippines, worsening the crisis wreaked by multiple back-to-back storms.

Pete Hegseth, the Army National Guard veteran and Fox News host nominated by Donald Trump to lead the Department of Defense, was flagged as a possible “Insider Threat” by a fellow service member due to a tattoo on his bicep that’s associated with white supremacist groups.

Suicides in the U.S. military increased in 2023, continuing a long-term trend that the Pentagon has struggled to abate.

The U.S. military judge at Guantanamo Bay, Cuba, has scheduled hearings in early January for alleged 9/11 mastermind Khalid Sheikh Mohammed and two co-defendants to enter guilty pleas in exchange for life sentences.

The Biden administration says Israel has made some good but limited progress in increasing the flow of humanitarian aid to Gaza, and therefore it will not limit arms transfers to Israel as it had threatened to a month ago if the situation had not improved.

A defense official says the Defense Department will appeal a military judge’s ruling that plea agreements struck by the alleged mastermind of the Sept. 11, 2001, attacks, and two of his co-defendants are valid.

Defense Secretary Lloyd Austin has directed the military to carry out a smooth transition to President-elect Donald Trump with a reminder to the force of its obligation to follow the lawful orders of the next commander in chief.

A military judge has ruled that plea agreements struck by alleged Sept. 11 mastermind Khalid Sheikh Mohammed and two co-defendants are valid.

The Biden administration is stepping up criticism of Israel for not doing enough to improve humanitarian conditions in Gaza as a 30-day deadline looms for Israeli officials to meet certain requirements or risk potential restrictions on military assistance.

U.S. officials say Defense Secretary Lloyd Austin is sending additional bomber aircraft and Navy warships to the Middle East to bolster the U.S. presence in the region.

The Biden administration is sending an additional $425 million in military assistance to Ukraine as Kyiv prepares to face Russian forces augmented by more than 10,000 North Koreans troops.

An Associated Press review shows that Israel is falling far short of U.S. demands to surge the level of humanitarian assistance allowed into Gaza or risk possible restrictions on U.S. military funding.

The U.S. and South Korea have called on China to use its influence over Russia and North Korea to prevent escalation after North Korea sent thousands of troops to aid Moscow’s war against Ukraine.

The Biden administration says some 8,000 North Korean soldiers are now in Russia near Ukraine’s border and are preparing to help the Kremlin fight against Ukrainian troops in the coming days.

Defense Secretary Lloyd Austin says North Korean troops wearing Russian uniforms and carrying Russian equipment are moving toward Ukraine.

Pentagon spokeswoman Sabrina Singh says North Korea has sent about 10,000 troops to Russia to train and likely fight against Ukraine within “the next several weeks.”.

American and South Korean officials say there's evidence that thousands of North Korean troops are now in Russia near Ukraine’s border.

Ukraine will receive $50 billion in loans, backed by frozen Russian assets, from Group of Seven allies.

The U.S. says 3,000 North Korean troops have deployed to Russia and are training at several locations, calling the move very serious and warning that those forces will be “fair game” if they go into combat in Ukraine.

The FBI says it's investigating the unauthorized release of classified documents on Israel’s preparation for a potential retaliatory attack on Iran.

U.S. Defense Secretary Lloyd Austin says the United States will get Ukraine what it needs to fight its war with Russia.

U.S. long-range B-2 stealth bombers launched airstrikes targeting underground bunkers used by Yemen’s Houthi rebels.

The Pentagon says more than 800 military personnel have seen their service records upgraded to honorable discharges after previously being kicked out of the military under its former “don’t ask, don’t tell” policy.

The Biden administration has warned Israel that it must increase the amount of humanitarian aid it is allowing into Gaza within the next 30 days or it could risk losing access to U.S. weapons funding.

U.S. Army leaders say the deployment of a Terminal High Altitude Area Defense battery to Israel and roughly 100 soldiers to operate it will add to strains on the Army’s air defense forces.

The Pentagon says the United States will send a Terminal High Altitude Area Defense battery to Israel along with troops needed to operate it.

The U.S. is sending a Terminal High Altitude Area Defense battery to Israel, along with troops to operate it.

A lawyer for news organizations has urged the U.S. military commission at Guantanamo Bay to unseal the plea deal struck with accused 9/11 mastermind Khalid Sheikh Mohammed and two others.

The Pentagon says is sending a “few thousand” additional troops to the Middle East to bolster security and to be prepared to defend Israel if necessary.

The Senate has confirmed a new commander of U.S. Army forces in the Pacific after Alabama Sen. Tommy Tuberville dropped his objections and allowed a quick vote on the nomination.

The Navy says its highest-ranking military officer has been successfully treated for early-stage breast cancer.

U.S. officials say Israel warned U.S. Defense Secretary Lloyd Austin in a call Tuesday that a military operation was going to take place in Lebanon.

The U.S. is sending several additional Air Force fighter jet squadrons to the Middle East, beefing up what has already been an increased military presence there as the region teeters on the brink of all-out war.

First lady Jill Biden and Defense Secretary Lloyd Austin have gone to Maxwell Air Force Base in Alabama to highlight programs that the administration is rolling out to improve service members’ quality of life as well as early childhood education in the military.

U.S. officials say nearly $6 billion in funding for aid to Ukraine will expire at the end of the month unless Congress acts to extend the Pentagon’s authority to send weapons from its stockpile to Kyiv.

Alabama Sen. Tommy Tuberville is blocking the quick promotion of an aide to Defense Secretary Lloyd Austin.

Defense Secretary Lloyd Austin says passage of a six-month temporary spending bill would have widespread and devastating effects on the department and the military.

Ukraine's president has told U.S. and allied military leaders meeting in Germany that his country needs the ability to strike deep within Russia now.

Top U.S. military leaders will be in Germany to discuss Ukraine’s wartime needs as Russia has conducted one of its deadliest airstrikes in the conflict and Ukraine presses its offensive in Russia’s Kursk region.

Members of Congress are pressing the top two Pentagon leaders to ensure the military is not swept up in politics during the coming presidential election and that active-duty troops are not used illegally as a domestic police force.

The Pentagon says Defense Secretary Lloyd Austin has ordered a guided missile submarine to the Middle East and is telling the USS Abraham Lincoln aircraft carrier strike group to sail more quickly to the area.

A Defense Department disagreement over how to bring to justice the accused mastermind of the 9/11 attacks and four others has thrown the cases into disarray.

Officials say a U.S. Coast Guard cutter on routine patrol south of Alaska's Aleutian Islands came across a Russian ship in international waters but within the U.S. exclusive economic zone.

Military-run hearings for accused Sept. 11 mastermind Khalid Sheikh Mohammed and two co-defendants at Guantanamo Bay, Cuba, are in upheaval following Defense Secretary Lloyd Austin’s decision to throw out a plea agreement.

Defense Secretary Lloyd Austin has spoken for the first time on his decision to throw out a plea deal for the accused mastermind of al-Qaida’s 2001 attacks and two other defendants.

Top U.S. national security leaders are calling for calm in the Middle East and say they are directly pressing Israel, Iran and others to avoid escalating the conflict.

Defense officials say several U.S. personnel were injured in a suspected rocket attack at a military base in Iraq.

The head of a group of family members of victims of the Sept. 11 terror attacks says she's hearing nearly unanimous praise of the U.S. defense secretary's nullification of plea deals for the accused mastermind and two others.

Defense Secretary Lloyd Austin has overridden a plea agreement reached earlier this week for the accused mastermind of the Sept. 11, 2001, attacks and two other defendants, reinstating them as death penalty cases.

The Pentagon has announced that the U.S. will move a fighter jet squadron to the Middle East and maintain an aircraft carrier in the region.

With large parts of the world in turmoil and deep uncertainty over the future direction of America’s global role, U.S. Secretary of State Antony Blinken sought this week to project an aura of calm normalcy as he traveled through Asia on his first overseas mission since President Joe Biden jolted the 2024 presidential race with his withdrawal.

Washington officials in Manila have announced $500 million in funding to boost Philippine defenses and progress in a proposed military intelligence-sharing pact amid shared concerns over China's increasingly aggressive actions in the region.

Japanese and U.S. defense chiefs and top diplomats agreed to further bolster their military cooperation by upgrading the command and control of U.S. forces in the East Asian country and strengthening American-licensed missile production there, describing the rising threat from China as “the greatest strategic challenge”.

U.S. Defense Secretary Lloyd Austin says that Russian and Chinese bombers flying together for the first time in international airspace off the coast of Alaska is a new show of expanding military cooperation and it raises concerns.

The Defense Department will review the Medals of Honor that were given to 20 U.S. soldiers for their actions in the 1890 battle at Wounded Knee to make sure their conduct merits such an honor.

Secretary of State Antony Blinken will head to Asia this week on an eight-day trip aimed at shoring up ties with Indo-Pacific allies and partners but with the priority of assuring them that the United States remains committed to the region.

Three Massachusetts lawmakers are pressing Defense Secretary Lloyd Austin to ground the V-22 Osprey aircraft again until the military can fix the root causes of multiple recent accidents, including a deadly crash in Japan.

Ukraine's defense minister said his country will find a way to withstand Russia’s invading forces even if Donald Trump wins a second term, jeopardizings vital U.S. support for its defense.

Sen. Susan Collins didn’t vote for Donald Trump for president in 2016 or 2020, and the third time will not be the charm.