This study examines nuclear dynamics in a Chinese invasion of Taiwan, a war that the authors hope will never occur. What creates the greatest pressure for nuclear weapons use in such a conflict? What happens if nuclear weapons are used? To answer these questions, the CSIS-MIT team modified its existing U.S.-China wargame to include nuclear weapons and ran it 15 times. 

The greatest pressure for nuclear use came when China teams reached a crisis: their invasion was in danger of a defeat that might threaten Chinese Communist Party (CCP) rule. To dissuade China from gambling for resurrection—using nuclear weapons to salvage a failing conventional campaign—U.S. diplomacy was much more important than nuclear brinksmanship. Favorable outcomes were possible, but total victory was unachievable. The United States must therefore be prepared to successfully prosecute a high-end conventional war while at the same time providing face saving off-ramps to the adversary. To do otherwise risks a nuclear holocaust, as indeed occurred in three game iterations.

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From the Center for Strategic & International Studies (CSIS)