During World War II Texas had approximately twice as many prisoner-of-war camps as any other state. Twenty-one prisoner base (permanent) camps were located on military installations, and over twenty branch (temporary) camps were constructed throughout the state. More than 45,000 German, Italian, and Japanese prisoners were interned in Texas from 1942 to 1945. As the war continued, a policy of maximum utilization replaced a policy of maximum security of the prisoners, which resulted in the use of over 27,000 prisoners in numerous agricultural tasks, such as picking cotton, pulling corn, and harvesting rice. The prisoners were well treated, and very few escape attempts occurred from the Texas camps. After the war almost all prisoners were returned to their native countries, and many expressed their desire to return to Texas. Over 100 prisoners who died of wounds or of natural causes are still buried in the Fort Sam Houston National Cemetery in San Antonio. See also GERMAN PRISONERS OF WAR, and WORLD WAR II, TEXANS IN.