BUCHAREST, Romania (AP) — The Biden administration is toughening its language toward NATO ally Turkey. Administration officials hope to talk Turkey out of a ground offensive against U.S.-allied Kurdish forces in neighboring Syria. Turkey has blamed the U.S. and its Kurdish militia ally in Syria, without evidence, for a Nov. 13 bombing that killed six people in Istanbul. Turkish airstrikes and artillery have killed scores of Syrian Kurds since then. Kurdish fighters and American troops work together in northern Syria to quell Islamic State fighters. How the U.S. handles the conflict there has implications for the NATO stand against Russia in the Ukraine war and the fight against the Islamic State, as well as for America’s Kurdish allies.