Description 24 January 1991 elements of IV and V Marine Expeditionary Brigades, and 13th Marine Expeditionary Unit, embarked on ships from Amphibious Task Groups Two and Three, were conducting amphibious exercise Operation Sea Soldier IV, the largest amphibious force assembled since the 1950 landing at Inchon, Republic of South Korea. The exercise was again highly publicized to ensure the Iraqi command understood the Coalition's amphibious capabilities.