On September 29, a message dropped from a light plane by an officer with the Military Advisory Group to the Republic of Korea, was delivered to the U.S. adviser to the ROK 3rd Division, Lt. Col. Rollins S. Emmerich. According to the message, the ROK 3rd Division was to cross the 38th Parallel and proceed to Wonsan as soon as possible. The next day the division crossed the parallel and advanced up the east coast. The Division followed. After establishing command posts at Yangyang, eight miles (13 km) north of the parallel, on October 2, both divisions proceeded to Wonsan and captured the town on the tenth, well before the X Corps had landed.