This week marks the 50th anniversary of the end of the Vietnam War, which is also known as the fall of Saigon. The conflict killed millions of Vietnamese and 60,000 American service members.

The president said Secretary of State Marco Rubio will serve simultaneously as acting national security adviser while maintaining his position at the State Department.

The latest turmoil threatens to engulf the Pentagon, where Defense Secretary Pete Hegseth has pushed out top advisers and faces fresh controversy over sharing sensitive information about airstrikes in Yemen outside of classified channels.

The total cost of the U.S. military’s operation against the Iran-backed Houthi militants in Yemen is nearing $1 billion in just under three weeks, even as the attacks have had limited impact on destroying the terror group’s capabilities, three people briefed on the campaign’s progress told CNN.

President Gitanas Nausėda and other dignitaries were among those who stood in respect as hearses carried the bodies of the four young Americans to Vilnius airport before being flown to the United States for burial.

Sen. Roger Wicker, the Republican chair of the committee, and Sen. Jack Reed, the top Democrat, signed onto a letter to the acting inspector general at the Department of Defense for an inquiry into the potential “use of unclassified networks to discuss sensitive and classified information, as well as the sharing of such information with those who do not have proper clearance and need to know.”

The disclosure follows two intense days during which leaders of President Donald Trump’s intelligence and defense agencies have struggled to explain how details that current and former U.S. officials have said would have been classified wound up on an unclassified Signal chat that included Atlantic Editor-in-Chief Jeffrey Goldberg,

U.S. Sen. Tammy Duckworth previously called U.S. Defense Secretary Pete Hegseth unqualified to lead the Defense Department and said he should either step down or be fired.

A magazine journalist’s account of being added to a group chat of U.S. national security officials coordinating plans for airstrikes has raised questions about how highly sensitive information is supposed to be handled.

In his executive order in January, the president wrote that being transgender “conflicts with a soldier’s commitment to an honorable, truthful and disciplined lifestyle” and is harmful to military readiness.

Top national security officials for President Donald Trump, including his defense secretary, texted war plans for upcoming military strikes in Yemen to a group chat in a secure messaging app that included the editor-in-chief for The Atlantic.

Six transgender active duty service members and two former service members who seek re-enlistment on Tuesday filed the first lawsuit challenging President Donald Trump’s executive order that calls for revising policy on transgender troops and probably sets the stage for banning them in the armed forces.

Speaking to reporters less than two weeks before he takes office on Jan. 20 and as a delegation of aides and advisers that includes Donald Trump Jr. is in Greenland, Trump left open the use of the American military to secure both territories. Trump’s intention marks a rejection of decades of U.S. policy that has prioritized self-determination over territorial expansion.

Biden boarded the helicopter after arriving on Air Force One in Chicago where he is speak Monday evening at the Democratic National Convention. It marked a crucial milestone in a two-decade-long process to replace the Vietnam-era helicopters that have been in use carrying presidents since the 1970s.

Calling New York City and Chicago “crime dens,” the front-runner for the 2024 Republican presidential nomination told his audience, “The next time, I’m not waiting. One of the things I did was let them run it and we’re going to show how bad a job they do,” he said. “Well, we did that. We don’t have to wait any longer.”

Since January 2020, the numbers of homeless veterans have fallen 11% and have gone down 55% over the past 13 years, according to a government count. That's in sharp contrast with the general homeless population.