The Japanese are concerned about a gradual decline in commitment by the United States to support Japan in a multi-polarizing world. Thus since 2010 Japan has moved to a more autonomous security policy while maintaining the U.S.-Japan alliance. Japan has increased its power projection capabilities such as with the development of homemade long-range cruise missiles, the Amphibious Rapid Deployment Brigade and the modification of two Izumo-class destroyers into de facto aircraft carriers with F-35bs. There's gradual integration among the three JSDF branches so they can operate more autonomously from the US.