I'm going to throw a emdcoa out there for discussion. The Nation with the biggest army in the region. And a place we would likely stage is Poland. If Russia wanted to catch folks off guard invading Poland who is not expecting it. And bypassing the Ukrainian defensive lines. Same with China hit Japan while everyone is expecting Tiawan. The objective would still be accomplished. Both Tiawan and Ukraine would fall either way. And the West would have to realign any future staging area's. Don't think like an American think like ones adversary.