Call of Duty: EndgameEdit
Starting in 2017, tensions occurred between NATO and the Shanghai Cooperation Organization over various issues. Mass power struggles happened as well, and many small wars were caused because of the tensions all over the world. The bloodiest was the Brazilian Civil War, between Brazil and the rogue Brazilian State.
In 2025, World War IV broke out between NATO and SCO, after the former declared war. During the war, NATO was defeated and had to cede many countries to the SCO afterwards. The organization eventually fell under complete control of the SCO and had little actual authority.