I believe (my interpretation) is that this is specifically talking about things such as the UN and the U.S. For years, our great country the United States has controlled, and taken over the weaker countries that we want to acquire imperialistically, we acquire under the pretense of "keeping them in check". This has happened with Cuba, Hawaii, Bahamas, and more. Look where it's got us with Cuba. Now we have to try and rebuild our relationship with them.
If they offer no threat to us, why would we want to "keep them in check?"