Defense analyst Andrew Krepinevich, at the Center for Strategic and Budgetary Assessments in Washington, says China's rapid development of its military arsenal raises concerns about possible Chinese expansionism.
"China was not under threat of aggression," said Krepinevich. "The U.S. had military dominance in the region after the Cold War and there was no attempt to contain China or threaten China. And so there is a lot of, I guess, concern over the fact that this military buildup does not seem to have been provoked. So if that is the case, then what is the objective here?"