Advance praise: 'In this fine study, Winson Chu examines the political sources of cohesion and conflict among ethnic Germans in interwar Poland. Because he demonstrates the prevalence of internal conflict even into the Nazi era, he significantly complicates conventional views about ethnic politics in Europe between the wars.' Roger Chickering, Emeritus Professor, Georgetown University 'Winson Chu's authoritative study of the Germans of interwar Poland reminds us that under the rhetorical surface, nationalist conflict more frequently seeks to police its own supporters rather than to defeat an 'enemy nation'. He demonstrates convincingly that regional German nationalist interests in Poland were fundamentally irreconcilable, that Polish repression hardly caused these differences, and that the advent of the Nazi regime in Germany reinforced the existing fragmentation of regional German political interests in Poland.' Pieter M. Judson, Swarthmore College.