Direct proof of use
Human Rights Watch directly documented Mk-83 use in the 2014 Yemen Civil War during its May 2015 field investigation in Saada City. The organization reported that Saudi-led coalition aircraft had extensively bombed the city, identified more than 210 impact locations in built-up areas from satellite imagery, and photographed remnants of a U.S.-made Mk-83 air-dropped 1,000-pound bomb at a government building.
The same report assessed crater and building damage at other Saada sites as consistent with aerial bombs of at least 1,000 pounds, but Human Rights Watch did not identify the exact munition at those other locations. For this record, the specific direct-use claim rests on the photographed Mk-83 remnant at the government building and on later documented Mk-83 warhead identifications in GBU-16 strikes.
Sources: HRW Targeting Saada
Dated milestones
The Saudi-led coalition began its Yemen air campaign on March 26, 2015, after Houthi-aligned forces advanced south and Yemen's internationally recognized president relocated to Saudi Arabia. HRW's May 15-16 field visit to Saada took place during a five-day ceasefire and produced the clearest public Mk-83 remnant finding for early coalition air operations.
Mwatana for Human Rights, the University Network for Human Rights, and PAX later documented several Saudi/UAE-led coalition attacks in 2015 and 2016 where remnants indicated likely U.S.-made GBU-16 Paveway II bombs fitted with Mk-83 warheads. Their cases included attacks on Sheikh Ahmed Al-Faza Primary School in Hudaydah Governorate, Al-Kahlani Factory in Hudaydah, Al-Honood residential neighborhood in Hudaydah city, and Dir Al Hajari village.
Sources: HRW Targeting Saada, Mwatana Day of Judgment
Use pattern
The documented user was the Saudi-led, later Saudi/UAE-led, coalition fighting on the Yemeni government side. The weapon appears in the public record as an air-delivered 1,000-pound Mk-83 bomb body in the Saada finding and as a Mk-83 warhead inside likely GBU-16 Paveway II strikes in Mwatana's later incident record.
The evidence does not show possession or use by Houthi-aligned forces, southern forces, AQAP-linked militants, or other non-coalition actors in Yemen. It also does not provide a complete inventory of coalition 1,000-pound bomb use; Saudi Arabia and other coalition members did not publicly disclose the types and quantities of weapons used in the Saada airstrikes, according to HRW.
A U.S. Defense Security Cooperation Agency notification in November 2015 separately listed a proposed Saudi purchase that included 2,000 BLU-110/MK-83 1,000-pound general-purpose bombs. That notification supports transfer and replenishment context for Saudi stocks, while the HRW and Mwatana investigations provide the direct conflict-use evidence.
Sources: HRW Targeting Saada, Mwatana Day of Judgment, DSCA Saudi Air-to-Ground Munitions
