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>> “George HW Bush signed US up for this.” <<
Nah! President Wilson signed us up, and then went to bed for 6 months while his wife and Colonal House did all the dirty work.
Teddy Rosevelt set us up for the Wilson admin.
The UN did not exist then.
There was a speech by GHW Bush in 1992 where he explicitly states that from now on the American people would pledge allegiance to the UN.