A UFO army large enough to cover the sky.
The ruthless invaders, the people helplessly running about, the overwhelming gap in science and technology!
The police, the army, a disastrous defeat.
And then... a new era began with a new ruler.
That's how it should've been. That's how it should've been! THAT'S HOW IT SHOULD'VE BEEEN!!!
At least if you're a frog alien and the Captain of the Space Invasion Forces Special Advance Team of the 58th Planet of the Gamma Storm Cloud System, sent to gather intelligence to prepare the invasion of Pokopen(aka Earth).

From left to right it's Dororo, Giroro, Keroro, Tamama and Kururu
Keroro Gunso(commonly known as Sgt. Frog in the US) is a rather hilarious manga and anime series about a bunch of frog aliens that's come to invade the Earth but gets taken captive and is forced to 'befriend' the Pokopenians(humans) while still attempting to conquer the planet. Since this is a humor series of course everything they plan backfires, goes haywire and just plain fails. I really recommend watching this if you want a good laugh.
(I could probably give a better description but I'm too lazy to do so ninja )
