"We're really on a knife-edge here," said Calder Walton, a historian specializing in intelligence at Harvard University's ...

The pause in deliveries of U.S. weapons coincides with signs that Russia will double down on longstanding efforts to exhaust ...

Ellie Cook is a Newsweek security and defense reporter ... including signals intelligence led by cooperation between the U.S.'s National Security Agency (NSA), Britain's GCHQ, the Australian ...

A representative of President Donald Trump’s administration has rejected the U.N.’s 2030 Agenda for Sustainable Development ...

The United States is temporarily suspending all military aid to Ukraine, according to a senior administration official, who ...

The rallies were scheduled in more than 30 US cities, including Boston, and organized mostly by graduate students and early ...

Ukrainian President Volodymyr Zelenskyy said yesterday that he believes he will be able to salvage his relationship with the ...

Sen. Elissa Slotkin (Michigan) delivered the Democratic Party’s response to President Donald Trump’s address to a joint session of Congress on Tuesday night, laying out her national security bona ...

Warsaw Mayor Rafał Trzaskowski, a presidential candidate for Poland's main governing Civic Platform (PO) party, has called ...

Elissa Slotkin, a freshman senator from Michigan and one of only two Jewish women in the U.S. Senate, is set to deliver the ...

Ukraine’s president has few options after last week’s astonishing Oval Office row with U.S. President Donald Trump, who ...