Updated on: May 29, 2026 / 3:52 PM EDT / CBS News Add CBS News on Google Washington — Ukrainian President Volodymyr Zelenskyy told CBS News Friday that Ukraine is bracing for "big attacks" by Russia as soon as Friday or Saturday night. In an exclusive interview with "Face the Nation with Margaret Brennan," Zelenskyy said Ukraine has received intelligence indicating that the assault from Russia will involve drones, as well as cruise and ballistic missiles. "Our people have to be very, very careful, cautious, and children — and they have to use bomb shelters," he said, "because today at night or tomorrow at night, high percent — of course, nobody knows 100% — but there is a high percent." Zelenskyy also thanked the U.S. and European partners for sharing intelligence on Russia's plans, but he indicated that Ukraine is in need of defensive weapons to intercept incoming Russian missiles. In a letter to Congress and President Trump dated Tuesday, the Ukrainian president pressed the U.S.…