Some (though not many) who had earned teaching credentials prior to their confinement were employed in the camp schools. A silkscreen shop was established in 1943, and its forty-five staff members created training materials and over 250,000 color posters for the U.S. Navy, in addition to calendars, program events and other personal-use items for camp residents. As in all the WRA camps, former doctors, nurses, dentists, and other healthcare workers found work at the camp hospital, although they were paid significantly less than their white coworkers — and fellow internees often pooled money to subsidize their low wages. Most of the work in Granada was directed at agricultural production, however. Like most of the other WRA camps, the land surrounding the residential areas were devoted to farming and raising livestock. The WRA budget restricted the per-inmate food allotment to 45 cents a day, partly to avoid the complaints of "coddling" and partly because the camp was intended to be mostly self-sufficient in its food production. These efforts proved especially successful at Granada, where internee laborers produced enough to feed the entire camp population and send the surplus to the U.S. Army and other camps. (In 1943, for example, Granada farmers grew 4 million pounds of vegetables.) Internee leaders set up a separate "Amache District" for Boy Scouts at the camp. These Scouts still flew the American flag, notwithstanding the treatment they and their families had received from the government, as seen in the photograph at left of a Boy Scout Memorial Day parade at the camp. In June 1942, the War Department authorized the formation of the 100th Infantry Battalion consisting of 1,432 men of Japanese descent in the Hawaii National Guard and sent them to Camps McCoy and Shelby for advanced training. Because of its superior training record, the Army's previous restrictions against Nisei (listed as enemy aliens ineligible for active service after Pearl Harbor) were lifted in order to create the 442nd RCT in January 1943 when 10,000 men from Hawaii signed up with eventually 2,686 being chosen along with 1,500 from the mainland. The 100th Infantry Battalion entered combat in September 1943 and it became known as the Purple Heart Battalion because of their heroism and horrific casualties. It was joined by the 442nd RCT in June 1944 and together it lived up to the motto "Go For Broke" because of the degree to which its soldiers risked their lives in battle and became the most highly decorated unit in the war and to this day, for its size and length of service.