By Tom Balmforth, Andreas Rinke, John Irish KYIV/BERLIN/PARIS (Reuters) -For Ukraine and its allies, who spent months trying to win Donald Trump over to their cause in the war started by Russia, it is back to square one.

In a reversal, President Trump appears to have backed off joining a European push for new sanctions on Russia, seemingly eager to move on to doing business deals with it.

Without waiting for Washington, the European Union and the U.K. announced a new raft of sanctions against Russia on Tuesday, less than 24 hours after President Donald Trump and his Russian counterpart Vladimir Putin exchanged a friendly,