The Day the Earth Stood Still

Was Klatu being fair with his demands on earth? Were his actions justified?

I think that Klatu's demands were justified and they were fair because it just an act of self defense. He comes from a different planet but there are many planets there. They all live in peace and are patrolled by cops like Gort. Klatu said that the Humans were coming very close to making spaceships that could travel far. He says that the humans can fight all they want but if they disturb the other planets, Earth will have to be destroyed. In other words Klatu means that if you attack us, it will mean war, which is fair. If Earth attacks then the planets can defend themselves. His actions were justified, when the soldier attacked him, Gort disarmed the army, it was the military that attacked first.