List the top four Members of the North Atlantic treaty organization(NATO)

As the coach of the u.s. olympic cycling team, i can state without question that the swedish and french teams were using illegal steroids. how else could they have beaten us so badly in the last competition? the u.s. team trained much harder and was much more skilled than our opponents. we only lost because a few teams cheated.

What from the columbian exchange had perhaps the biggest impact on the world?

The code talkers work contributed mostly to