Taiwan is where the uneasy peace between the United States and China will be tested--and possibly broken. Beijing believes that "reunification" is inevitable. American military strength has preserved peace and stability for decades, but its advantages are eroding. Beijing has found critical gaps in U.S. strategy and is working to squeeze, isolate, and coerce Taiwan into submission without firing a shot. If deterrence fails, the consequences of a Taiwan crisis would be catastrophic--plunging the global economy into chaos, shattering U.S.…