Mark Wilson/Getty ImagesIf the only measure of national security success during a president's first 100 days were avoiding catastrophe, then, OK, President Trump has succeeded. No attacks on the U.S., no new wars, and no nuclear Armageddon — these are good things, and in the moment we can breathe a sigh of relief. However, those outcomes arguably owe more to the national security machine built by Trump's predecessors than any decisions of the 45th president.