The bible tells us that the global government will eventually rule under the anti-christ, and Christians will be persecuted and killed.. But not before there is massive revival and the Jews accept that Jesus is Lord!
But it's all on God's time, not the enemy's. What I'm getting at is Christians don't need to take up arms against some invading enemy. We just need to trust God, love others, and share the good news; that even when global totalitarianism finally does happen, that Jesus defeated death on the cross and will destroy the globalists who refuse to repent upon his return!