You're reading: Foreign Policy: International monitor quietly drops drone surveillance of Ukraine war

The European security organization tasked with monitoring deadly violence between government forces and Russian-backed separatists in eastern Ukraine has lost its most effective surveillance tool in the conflict: long-range unmanned aerial vehicles, or drones.

The long-range drone program was crucial for spotting armed attacks, the stationing of prohibited weapons, and countless other cease-fire violations. But it was nixed two months ago, Foreign Policy has learned, after several of the aircraft were targeted by surface-to-air missiles and military-grade electronic jamming.

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