Basically my focus for this thread is Central America. Come up with scenarios for Mexico to acquire all of Central America possibly excluding Panama at first if it's too hard but you can add it later. It doesn't really have to be pre 1900. Just from a modern perspective it would seem to make a lot of sense for these countries to be part of Mexico I mean Mexico is a federation with quite a lot of differences between states so I'm sure they would fit right in. I know that most of Central America was part of the Federal Republic of Central America but that disintegrated pretty quickly.