That means u-turn.

In U-Turn, Germany Will Send Weapons to Ukraine – Germany will send weapons to Ukraine including antiaircraft missiles and tank-busting rockets in a reversal of earlier policy, German Chancellor Olaf Scholz said Saturday.
The U-turn was triggered by the Russian invasion, which Mr. Scholz said marked a turning point. “It is our duty to support Ukraine to the best of our ability in defending against Putin’s invading army,” Mr. Scholz said in a statement. “That is why we are delivering 1,000 antitank weapons and 500 Stinger missiles to our friends in Ukraine.”