destroyed eleven incoming missiles, However, the American Department of Defense stated no Allied missiles were shot down. Yemen Civil War South Yemen formerly operated these systems in the South Yemeni air defense forces. Later, United Yemen purchased a large number of these systems in the 1990s and they entered service with the Yemeni air defense forces in 1999. On 6 June 2019, Houthi forces successfully shot down a USAF MQ-9. CENTCOM officials blamed the shoot down on a Houthi-operated 2K12 Kub system. Operators Current operators – about 40 2K12s, as of 2012 – 16 2К12s, as of 2021 – 20 2K12s, as of 2016 – 20 2K12s, as of 2019 – 25+ – 4 batteries – 16 launchers and 4 radiolocators – 56 2K12s, as of 2012. All modernized and upgraded. – unknown number in service. – 12 2K12s, as of 2019 – 180 2K12s, as of 2012 – 20 2K12s, as of 2012 – Kub Kvadrat-M and Kub 2K12M2 air defence systems received from Belarus. – 20 2K12s, as of 2015. – 32 batteries, future upgrading expected and proposed – 12 batteries – 195 2K12s, as of 2012 – 20 2K12s, as of 2012 – 2+ in service as of 2016 - 40 2K12s, as of 2021, some upgraded to Kwadrat 2D Former operators – Replaced by 9K37 Buk. Current 1 battery 2K12s deployed in Armenia, as of 2012 (retired as of 2015). Also in service as IVC 3M20M3 Peniye missile training target imitator system – Passed on to successor states – 4 2K12s with C2 Tatrapan PVO Retired. – Retired after German reunification – Passed on to successor states – Passed on to successor states References Sources External links Kub system walkarounds Kub 3M9 (SA-6 Gainful) at Federation of American Scientists website Needles in the Haystack – Hunting Mobile Electronic Targets, Maj Michael Pietrucha, USAF Radar Sites near the North Gate, photos of Soviet radars at Area 51 North Gate Photos of Polish Kub Cold War surface-to-air missiles of the Soviet Union Self-propelled anti-aircraft weapons of the Soviet Union Self-propelled anti-aircraft weapons of Russia 2K12 2K12 Military vehicles introduced in the 1960s Almaz-Antey products