On September 11, 1941, the Pentagon was born. An aerial view of the Pentagon’s construction on Feb. 29, 1942. Construction broke ground September 11, 1941. Photo: DOD.

The news came as U.S. President Donald Trump has grown more frustrated publicly over the three-year-old war and his inability ...

A view showing one of the five sides of the then-War Building. Today the Pentagon is surrounded by 200 acres of lawn. Thomas D. McAvoy—TIME & LIFE Pictures/Getty Images Not published in LIFE.

Analysis by a team of six structural, fire protection, and forensic engineers concluded that the Pentagon's resilient structural system curtailed the damage done by the hijacked plane on September 11, ...

"The firing of yet another senior national security official underscores the Trump administration’s dangerous habit of ...

ELLIOTT: Once the building was completed in 1942, what was the response to the building? Mr. VOGEL: It became sort of a national joke for anything really big or outlandish was a Pentagon-type project.

The Pentagon has been quietly blocking Ukraine from using U.S.-made long-range Army Tactical Missile Systems (ATACMS) to ...

The Pentagon Press Association called the decision “unreasonable.” Just weeks later on Feb. 21, the Pentagon banned reporters from the press briefing room unless officials were holding a briefing.

A police officer died Tuesday after shots were fired outside the Pentagon building, according to three law enforcement sources. The Pentagon Force Protection Agency, which oversees the security of ...

Construction on the Pentagon didn't begin until the U.S. was about to enter World War II. The race to complete it is the inspiration behind a new book, The Pentagon: A History. Host Debbie Elliott ...