Conqueror of Another World

[Military] + [Double Main Male Protagonist] + [No Female Protagonist] + [Not the Virgin] + [Multinational Army] + [System] + [Invincible] Whether to command a large number of fleets in a different world, or to seek a chance of survival in the wild beast world, to start a huge revolution on a foreign continent, or to become the king of war in the beast world, and finally to save the world from the endless tide of corpses in his hometown. Everything is witnessed on the journey to another world. (The introduction sucks)