Hm, staying in global for a long time - you maxed everything then? Buildings, troops, research, forest?
Just wondering what's the highest level for each age.
Going to cold war, I think. Don't worry about fragments and loot. And since you are having maxed base, don't worry about getting attacked either.
There's only 1 thing you have to worry. If you participate in world wars, your alliance would hope more cause you are (hypothetically you've been) a cold war age player.
Go go go!