 Nearly half a million immigrants were drafted, which forced the military to develop training procedures that took ethnic differences into account.Military leaders invited Progressive reformers and ethnic group leaders to assist in formulating new military policies.The military attempted to socialize and Americanize young immigrant recruits, not by forcing "angloconformity", but by showing remarkable sensitivity and respect for ethnic values and traditions and a concern for the morale of immigrant troops, with the aim of blending them into the larger society.