Strategic Defense Coalition, SDC for short, is an Asian military alliance that appears as the primary antagonists of the Strike Force missions in Call of Duty: Black Ops II and one of the antagonist factions in the game. If the SDC is defeated in all of the Strike Force missions, it will become a supporting protagonist faction for NATO and Joint Special Operations Command.
Formed by the Chinese government in response to the start of the Second Cold War, the SDC includes many East Asian countries, including North Korea, Kazakhstan, Mongolia, Myanmar, Nepal, Bhutan and others. Led by General Tian Zhao, they come into opposition with the United States during the Second Cold War, with Raul Menendez playing the US and SDC against one another for his own ends.
During the Strike Force missions, the SDC attempted to pressure Russia into joining by expanding their influence into key locations such as India, Iran and Afghanistan. JSOC strike force, led by Admiral Tommy Briggs and Lieutenant Commander David Mason, opposes the SDC, knowing that if Russia joins, they'll be the largest military force on the planet. Depending on the player's actions in the Strike Force missions, the SDC begins to lose their power and General Zhao is eventually assassinated, leading to more moderate leadership taking over the SDC. After this, the SDC joins the fight against Menendez and Cordis Die by saving the USS Barack Obama from the hacked drones and fighting alongside JSOC in an assault on his Cordis Die headquarters in Haiti. If either all Strike Force missions or one of them fail or do not play Strike Force missions, the SDC will control nearly all of Asia, causing tensions between the US and China increased.
- In Die Rise, the SDC appears as zombies and have slightly higher health than regular zombies, mainly due to their armor they are still wearing, as these can be a bit tricky if players are using weapons that do not cause significant damage to them.