 Thermobaric weapons were developed in the 1960s in the Soviet Union and US; however, the first attempts had previously been undertaken during the Second World War by the German Luftwaffe.The Soviet armed forces extensively developed FAE weapons, such as the RPO-A, and Russia used them in Chechnya.The Russian armed forces have developed thermobaric ammunition variants for several of their weapons, such as the TBG-7V thermobaric grenade with a lethality radius of , which can be launched from an RPG-7.