The Latest Breaking News from National Security

The pursuit by Nippon Steel of the Pittsburgh-based company has hindered by national security concerns

Nippon Steel and U.S. Steel say they've finalized their “historic partnership,” a year-and-a-half after the Japanese company first proposed its deal to buy the iconic American steelmaker for nearly $15 billion

Mr Trump met with his National Security Council in the White House’s situation room shortly after a series of sabre-rattling social media posts.

‘It lost steam toward the end because the president wasn’t there,’ an official said

Sam Altman has signed a contract allowing the US Defense Department to access custom AI models for 'national security' purposes, amid tense negotiations between OpenAI and Microsoft.

Donald Trump has left the G7 summit a day early to return to Washington to hold a National Security Council meeting as the Israel-Iran conflict escalates.

US president has surrounded himself with ‘America First’ adherents, possibly influencing his appetite for war.

The UK’s decision to impose sanctions on two far-right Netanyahu government ministers has put it at loggerheads with the Trump administration over Israel. Announcing on June 10 that Britain would join Canada, Australia, New Zealand and Norway in sanctioning Israel’s minister for national security, Itamar Ben-Gvir, and minister of finance,…

The partnership between US Steel and Nippon Steel has reached a new phase, with an agreement on US national security guarantees, in addition to the so-called "golden share" advantage obtained by President Donald Trump's administration.

President Donald Trump has signed an executive order paving the way for a Nippon Steel investment in U.S. Steel, so long as the Japanese company complies with a “national security agreement” submitted by the federal government

New York Magazine’s profile reveals defense secretary became more fearful after The Atlantic published his texting out what looked like war plans