C3PX said:
I hear a lot of people are starting to get fed up with this show, but I think it is getting better and better. If you check out page one of this thread, originally I was pretty harsh on the show, and the sheer amount of time travelers was one of the reasons. In the films each side only sends one soldier back, it seems like if it were an easy process, they'd just send a whole army back to whipe out John and ensure Skynets safety.

Maybe the difficulty is in getting the time machines built. We know they can send 4 through time from the show (John, Sarah, Cameron, can't remember who was the fourth, but I'm pretty sure there was a fourth). Of course, that might just be a matter of scale. Anyway, my point was going to be that the time machines are probably a prime target. They might take a while to build, needing secrecy the whole time. If the location gets out, then the other side would make an attempt to destroy it.

This would probably also lend some credence to Kyle's statement in T1 about winning the war. The humans were about to destroy the facility and only jumped into the time machine in order to follow the lone Terminator. With the future altered, another time machine would be built in an effort to kill John (T2). Wash, rinse, repeat.

I'm still at least one episode behind, so I don't totally understand why they'd send one all the way back to 1920 (or whatever the date was) unless it's to kill the entire Connor tree. But I would think they risk altering the events that lead to Skynets creation in that case too.