A group of recruits go through Advanced Infantry Training at Fort Polk, Louisiana's infamous Tigerland, last stop before Vietnam for tens of thousands of young men in 1971.A group of recruits go through Advanced Infantry Training at Fort Polk, Louisiana's infamous Tigerland, last stop before Vietnam for tens of thousands of young men in 1971.A group of recruits go through Advanced Infantry Training at Fort Polk, Louisiana's infamous Tigerland, last stop before Vietnam for tens of thousands of young men in 1971.