Conservative activist Laura Loomer targeted a deputy national security adviser and questioned whether he is to blame for the Trump administration including a journalist in a Signal group text about ...

Mike Waltz has been in the spotlight since he created a group chat on the messaging app Signal to discuss sensitive ...

Defense Secretary Pete Hegseth’s use of the Signal group chat with other national security officials to discuss plans for ...

President Trump on Thursday confirmed a reported purge of national security agencies this week, with firings of at least a ...

The Atlantic’s editor-in-chief was mistakenly added to a Signal group chat with administration officials discussing attack plans last month ...

More than 160,000 people have been killed in Yemen, according to an ACLED report, and 19,200 civilians, including more than 2 ...

The total cost of the US military’s operation against the Iran-backed Houthi militants in Yemen is nearing $1 billion in just ...

Signalgate shows a fundamental misunderstanding of encryption, so it's important to understand how these technologies ...

Welcome to The Hill’s Defense & NatSec newsletter{beacon} Defense &National Security Defense &National Security   The Big ...

Trump’s war in Yemen has come under greater scrutiny after his national security officials leaked details of the initial ...

U.S. Rep. Dale Strong this week said he does not believe Huntsville would make a good headquarters for the Federal Bureau of ...