This explains why small countries like Taiwan or Israel, for example, rank so high in terms of military strength compared to other nations of hundreds of millions that lack war tech and weaponry. The list of the 25 Most Powerful Militaries In the World that follows proves how drastically the rules and tactics of war have changed in recent history and how superior technology and weapons can alter the fate of battles. Featured image by: Infinite_Eye / Shutterstock.com NOTE: Ranking derived from globalfirepower.com. Enjoyed reading about the world’s most powerful militaries? Then you’ll enjoy going deeper into the world’s most powerful military via these surprising facts about the United States Military.