The Battle of Tarawa was the first American offensive in the critical central Pacific region. It was also the first time in the war that the United States faced serious Japanese opposition to an amphibious landing. Previous landings met little or no initial resistance, but this time the 4,500 Japanese defenders were well-supplied and well-prepared, and they fought almost to the last man, exacting a heavy toll on the United States Marine Corps. The U.S. had suffered similar casualties in other campaigns, for example over the six months of the Guadalcanal Campaign, but in this case the losses were incurred within the space of 76 hours.
The Joint POW/MIA Accounting Command (often referred to as JPAC) was a joint task force within the United States Department of Defense (DoD) whose mission is to account for Americans who are listed as Prisoners of War (POW), or Missing in Action (MIA), from all past wars and conflicts. It was especially visible in conjunction with the Vietnam War POW/MIA issue. The mission of the Joint POW/MIA Accounting Command was to achieve the fullest possible accounting of all Americans missing as a result of the nation's past conflicts. The motto of JPAC was "Until they are home".