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.

Trump said he would end the war in Ukraine within his first 24 hours in office. His patience with Russia's Putin now appears to be wearing thin.

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

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.

Russian President Vladimir Putin’s forces launched a massive aerial assault on Ukraine early Thursday for the second time in two days.

U.S. Secretary of State Marco Rubio said Thursday that the United States and Russia have exchanged new ideas for Ukraine peace talks after he met with his Russian counterpart in Malaysia.

Kazakhstan, whose close ties with Russia and China have made it a significant regional player in Central Asia, has said it is ready to reach a compromise with the Trump administration over tariffs due to take effect next month.