The Ukrainian government and U.S. lawmakers on both sides of the aisle are voicing concern that the decision could boost Russia’s war effort.

Mr. Trump’s action “basically is going to give a blanket opportunity around all the things that we need to turn back on this economy,” the president’s special envoy for Syria, Thomas J. Barrack Jr., ...

A satellite photo of Iran's Fordo fuel enrichment facility taken on June 24 shows debris (grey) from a U.S. strike employing ...