USA is an unreliable
I disagree. The US is very reliable in losing wars, spending money it does not have, and then, after the loss, bringing a bunch of locals home to form another foreign gang since we don't have enough of our own.
The US latest achievement: Afghanistan, 20 years, trillion bucks, 43,000 Afghanis killed, 7000 dead, and 50,000 wounded Americans, and a take-home souvenir - 18,000 Afghanis who were our "allies".