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... On Monday, Mr. Zelenskyy claimed that, for the first time in the war with Russia, Ukraine used unmanned robotic vehicles and drones to overwhelm an enemy position.

"The occupiers surrendered ... without infantry and without losses on our side," he said, touting his military's ground-based robotic systems, plus its long-range and naval drones.

Praising Ukraine's innovative technology, Mr. Merz said, "Germany's commitment to supporting Kyiv's war effort is a very clear signal to Russia." ...