Due to miscalculations in planning by the Ministry of Defense of the Soviet Union, there was a shortage of engineering units serving in Afghanistan during the Soviet–Afghan War. In 1986, the Engineering Troops took part in the military response to the biological effects of the Chernobyl accident. After the collapse of the USSR in late 1991, the Engineering Troops were dissolved and its component units were absorbed by Russia as well as the newly formed armed forces of nations such as Ukraine, Belarus, Kazakhstan, and Armenia.[2]