Mexico can snowball hard pretty fast, but just make sure you're keeping your army up to date (line->skirmish infantry, basic training PM for barracks at the least, and keep researching to unlock better ones) otherwise the US will delete you

thanks for the tip as well

@@SlovakianBear np... I'm sure you're aware but don't build too many sectors, rather just slowly build up iron mines & tooling workshops along with logging camps so you could eventually shift over to iron-based construction, then steel, and so on

@@SlovakianBear there's also a new mod on the workshop that actually fixes mexican-american borders so you may want to try that