Ukraine is benefiting from Donald Trump's frustration with Vladimir Putin, but his first six months in office show that no one knows if it will last.

By Kanishka Singh, Frank Jack Daniel and Angelo Amante WASHINGTON/KYIV/ROME (Reuters) -U.S. President Donald Trump said on Thursday the United States would supply weapons to Ukraine via NATO and that he would make a "major statement" on Russia on Monday.

President Donald Trump could send as much as $300 million in military aid to Ukraine, one source told Reuters.

A new book alleges that President Donald Trump told donors he threatened Russian President Vladimir Putin with bombing Moscow if Russia invaded Ukraine.

Trump’s decision to help Ukraine fight an onslaught of Russian attacks reverses a Pentagon decision to withhold defensive weapons.

Republican defense hawks are riding high after a series of events abroad prompted President Donald Trump to lean away from his more quasi-isolationist roots in his first term. His bombing of Iran, increased aggression toward Russia,

Former Vice President Mike Pence says he thinks isolationists “may have lost some of their footing” in President Donald Trump’s administration, as he praised Trump’s tougher talk toward Russia’s Vladimir Putin and his decision to bomb Iranian nuclear facilities.