In 1920, upon the end of World War I, the Army restructured its internal organization so that Governors Island was now the headquarters of the Second Corps Area. Few structures were built immediately after the end of the war, though the Army maintained the existing buildings and continued to utilize the island as a military prison. Some of the wooden barracks structures deteriorated rapidly, prompting objections from congressional delegations. A school for Army soldiers' children was opened on Governors Island in 1926.