But the greatest long-term threat to the peace of East Asia and Pacific Ocean — the part of the world at the heart of the Obama administration’s aspirational defense strategy — is climate change, according to the admiral in charge of U.S. military operations there.

Adm. Samuel J. Locklear III is no smelly hippie. He became chief of U.S. Pacific Command last year after running the maritime portion of NATO’s 2011 war against Libyan dictator Muammar Gadhafi. To Locklear, the consequences of a warming planet are likely to “cripple the security environment, probably more likely than the other scenarios we all often talk about.”