One little noticed decision reached at the G-20 Summit was to postpone the transfer of wartime command of allied forces on the Korean Peninsula, originally scheduled for April 2012, until 2015.
More time also allows the Obama Administration to consider the broader challenge of security in Northeast Asia. A central feature of the security environment in the region is the need for local allies to take on more responsibility for their own defense.
That is the motivation behind the transfer of OPCON or operational control of forces on the Korean Peninsula to South Korea. But for allies to do more in their own defense they must have the tools.