It is these supranational entities that result in WWIII along with a massive War on Terror.

Many of the supranational states decide to stamp out terrorism which results in an increased in the creation of private military companies and hiring of mercenaries by corporations, terrorist groups, and supranational organizations, along with the UN.

One of the laws shared by all supranational organizations is that soldiers must wear the flag of the nation they are citizens of. In fact, this even spreads to civilians.

Also, the Mobile Peacekeeper Armed Forces was created after WWIII (despite a lot of protests from anti-war and political groups) to help prevent a fourth world war.

The MPAF is under the command of the United Nations which was reformed as the United Terran Nations (after the launching of the first space station colonies). After a short half-year rebellion by the station colonies, the UTN granted, with the blessings of the supranational alliances, the station colonies their independence and made them full fledged members of the UTN.

Now the POTA means that China and Taiwan get along, as well as SK and NK.

Did I just kill the chat?

Another law that is common is that flag burning is illegal. This makes a lot of people (especially civil rights activists in the US) unhappy, which results in the Flag Burner Crack Down Riots that erupted in LA, US.