U.S. President Donald Trump's envoy to Ukraine, Keith Kellogg, said Russia's concern over the eastward enlargement of NATO was fair and the United States did not want to see Ukraine in the U.S.-led military alliance.

U.S. special envoy for Ukraine and Russia Keith Kellogg discusses the ongoing cease-fire negotiations between Ukraine and Russia.

Russia's troop buildup on Ukraine's border raises tensions. Zelenskyy and Trump push for peace talks, but Moscow's refusal to hand over memorandum stalls negotiations.

After their Vatican meeting last month, the Ukrainian leader said he was under the impression Trump would impose sanctions on Russia if no ceasefire deal was reached.

The White House faces the question of whether its appeasement of Russia has failed to achieve the ceasefire it promised and instead emboldened the Kremlin on the battlefield.

But in recent weeks, the relationship has begun to show signs of strain.

The American president’s preference for praising and excusing the Russian leader has yielded no progress toward peace in Ukraine.

Historically, President Donald Trump and Russia’s President Vladimir Putin have enjoyed a very special relationship ― at least if you’re viewing it through Trump’s perspective. As far back as 2013, Trump was envisioning a friendship with the Russian authoritarian leader,