Complex sentence: He believes the Soviets will then overthrow the government once the'head of the communist body' is cut off and that the US can use asymmetrical warfare such as using civilian airliners as rammers against Soviet bombers.
Split into simpler sentences: He believes the people of the USSR will then overthrow the govt once the'head of the communist body' is cut off. He further believes that the US can use asymmetrical warfare such as using civilian airliners as rammers against Soviet bombers.