An FZU-39/B proximity sensor, which opens CBU-105 Sensor Fuzed Weapon in mid-air, reportedly used in an attack on the Affash Historic Fort in Sanhan, Sanaa governorate, on May 21.

An FZU-39/B proximity sensor, which opens CBU-105 Sensor Fuzed Weapon in mid-air, reportedly used in an attack on the Affash Historic Fort in Sanhan, Sanaa governorate, on May 21. 

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