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

The arrangement allows Ukraine to get weapons it needs in its war with Russia while providing a way for Europe to increase its defense spending as promised.

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 Trump announces arrangement where NATO pays for US weapons sent to Ukraine, as Russian strikes intensify across Ukraine, including an attack on a maternity hospital.

President Trump said Monday his administration will send more defensive weapons to Ukraine amid its war with Russia, days after pausing some weapons shipments.

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

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.