The National Cancer Institute is studying ivermectin as a potential cancer treatment, according to its top official, alarming career scientists.

Russia’s foreign minister has publicly accused Washington of blocking progress toward ending the war in Ukraine, reviving disputed claims about past US-Russian talks. The comments come as Moscow seeks ...

The next great biological threat may not begin in a wet market, a jungle, or a laboratory accident. It may begin on a laptop ...

The latest round of U.S.–Iran nuclear talks is unfolding against a complicated backdrop, one shaped not just by diplomacy.

Video shared by Ukraine's air force late on Sunday captured the explosion midair of a Russian Shahed 136 drone after it was shot by an F-16. The footage offered a rare, clear glimpse of the air-to-air ...

President Trump will let a treaty to limit nuclear weapons for the U.S. and Russia expire on Thursday, he confirmed in a ...

USS Abraham Lincoln is deployed to the U.S. 5th Fleet area of operations to support maritime security and stability in the ...

Envoys from Moscow and Kyiv met in Abu Dhabi on Wednesday for another round of U.S.-brokered talks on ending the almost ...

Welcome to The Hill’s Defense & NatSec newsletter {beacon} Defense &National Security   The Big Story  US, Ukraine disagree ...