Marines deployed with the 31st Marine Expeditionary Unit attack the beach at Incheon during the 60th anniversary of the landing in the Republic of Korea, September 15. The ceremony was dedicated to the veterans of the conflict and honored the long standing alliance between the U.S. and the Republic of Korea. - Marines deployed with the 31st Marine Expeditionary Unit attack the beach at Incheon during the 60th anniversary of the landing in the Republic of Korea, September 15. The ceremony was dedicated to the veterans of the conflict and honored the long standing alliance between the U.S. and the Republic of Korea.