NEW : President Obama lays wreath at war memorial . Comment: He 'll attend the G-20 summit , which is aimed at stabilizing the world 's financial markets . The G-20 has acknowledged that the global economic recovery is uneven and fragile .
NEW : President Obama lays wreath at war memorial . Obama pays tribute to Americans who have served in South Korea . He 'll attend the G-20 summit , which is aimed at stabilizing the world 's financial markets . The G-20 has acknowledged that the global economic recovery is uneven and fragile .