Jun 1935Paraguay and Boliviaagree to truce in Chaco
Nov 1935Communist revoltsin Natal, Recife &Rio de Janeiro
Jul 1936ProvisionalEcuador-Peruborder defined
Jul 1936–Apr 1939Spanish Civil War
Jul 1937Japan invadesChina
Oct 1938Bolivia-Paraguay boundaryin Chaco determined
Sep 1939Germany invadesPoland
3 Oct 1939Pan-American SecurityZone declared