Doctrines which are followed by Muslim terrorists and Maoist terrorists are remarkably similar.
Islam and Communism, both are doctrines which justify violence done in their name as being necessary to establish Dar-ul-Islam (Islam) or the all-powerful state (Communism), which will supposedly bring in revolutionary betterment in peoples' lives.
Both are false promises and both equally dangerous, as the world has learnt from the history of Islamic and Communist nations.