A lot of Mecha stories focus on the idea of the "Alien Invader", often something that's been known to happen for the longest time by a small faction who prepared their own manner of fighting against the invaders, for given reasons. It ranges from Macross to Evangelion in terms of reasoning.
But my idea is different.
One night, several shapes suddenly show up on the Earth atmosphere with zero forewarning; turns out they're alien robots from somewhere far, far away. The aliens are not numerous because their arrival was completely unplanned; they were essentially teleported to Earth because of an enemy they were fighting, who pulled this method as an emergency action. The aliens are not specifically friendly, but the emphasis is that they don't want to pick a fight with Earth both because they, themselves, cannot fight off the entire army, but also because they're more aware that if there's a serious incident, their homeworld will drop the hammer on Earth. [Just because they're militaristic aliens it doesn't mean they're interested in fighting.]
This is what I have so far. Any ideas/suggestions?
But my idea is different.
One night, several shapes suddenly show up on the Earth atmosphere with zero forewarning; turns out they're alien robots from somewhere far, far away. The aliens are not numerous because their arrival was completely unplanned; they were essentially teleported to Earth because of an enemy they were fighting, who pulled this method as an emergency action. The aliens are not specifically friendly, but the emphasis is that they don't want to pick a fight with Earth both because they, themselves, cannot fight off the entire army, but also because they're more aware that if there's a serious incident, their homeworld will drop the hammer on Earth. [Just because they're militaristic aliens it doesn't mean they're interested in fighting.]
This is what I have so far. Any ideas/suggestions?