In Warsaw, the foreign ministers of Poland and West Germany initialed a peace treaty between the two nations, with West Germany formally acknowledging Poland's ownership of 40000 sqmi of former German territory east of the Oder and Neisse rivers "Bonn, Poles Put OK On Treaty Text", Pittsburgh Post-Gazette, November 19, 1970, p3 The Communist governments of Poland and East Germany had previously agreed that the Oder-Neisse line was the boundary between their nations.