![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.](/sites/default/files/multimedia_images_2016/fzu-1_225.jpg)
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.
© 2015 Private
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.