Sgt. Frog Episode 70: War and PC!
Episode 70 of 358 of Sgt. Frog, aired August 5, 2005, 25 minutes. Available with English subtitles and dub where released.
Episode summary
It`s time for an all-out battle simulation between the frogs and the humans, to see what would happen if the Keroro Platoon tried seriously to invade the Earth! Sadly for Keroro, his bonus is in danger if he doesn`t succeed... Source: crunchyroll