George W. Bush called Korea president Roh and thanked for supporting America-Iraq war and passages of the bill of dispatching troops to Iraq on the night of the 4th. In addition, he promised to solve the nucleus problem of North Korea. Nuclei and terrorism caused complications between America and Iraq. America declared the attack on Iraq and the war began. Korea threw its full support and passed the bill of dispatching troops. However we can know that dispatching troops to Iraq will cause solving the nucleus problem of North Korea and increasing national interests by presidents' call.