Trump's push for a quick peace with Moscow while sidelining Ukraine has caused fear among many Ukrainians and their allies. But front-line troops say they are determined to fight on, citing three years of bitter sacrifices and the loss of tens of thousands of comrades-in-arms.

To see an American president betray Ukraine like this is really beyond words,” said Mary Kalyna, who is active in the Philadelphia Ukrainian community.

A Polish court on Friday sentenced a Ukrainian, Serhii S, to eight years imprisonment for planning acts of sabotage on behalf of Russian services. Poland and other NATO countries are said to have been experiencing increased sabotage,