When Russian President Vladimir Putin ordered up to 200,000 soldiers into Ukraine, his aim was to sweep into the capital, Kyiv, in a matter of days. He wanted to overthrow the pro-Western government and return Ukraine to Russia's sphere of influence.

As U.S. President Donald Trump continues to push for a swift end to the war in Ukraine, fears are mounting that Kyiv could be forced to accept a peace deal on unfavorable terms, and that will leave it vulnerable to future Russian attacks.