Ukraine pulled its Abrams tanks from the front due to Russian drone tactics, US officials say

• Ukraine has removed Abrams tanks from the front lines, Pentagon officials told the Associated Press.
• They said the tanks are struggling with Russia's drones and attack tactics.
• Drones proliferating over Ukraine's skies have proved fatal to high-value targets, including tanks.

Ukraine has withdrawn its US-supplied Abrams tanks from the front lines in the face of Russian drone warfare tactics, two US defense officials told the Associated Press.

One of the officials, who spoke on condition of anonymity, said swarms of drones flying over Ukraine meant "there isn't open ground that you can just drive across without fear of detection."