(Jesus, was I high writing this?)
First, with that in mind, I think the most Histan would say is "Hey, the Federation is going north. They're probably gonna die there but arm yourself just in case they take a hard right." That'd set up at least a fair battle for when the Federation makes landfall.
Second, my take on importing hardware. There's a lot of 80's technology that stacks up evenly with current Yoren hardware (World War 3 occurs in that timeframe. I'll get to that when I get there, but it'll be a footnote for the current chapter.) Given that whoever dies in their APC/tank/chopper gets their vehicle sent with them, they should know how to commandeer it. It's better to just leave them with their vehicle than spend more time and money on training them to fly levitators and whatnot.
Trust me, there's a lot more planned for both worlds.