How could WWII have expanded with greater Latin American direct military involvement, apart from the Brazilian expeditionary force sent to join US 5th Army in Italy Sept 1944 and the Mexican aero squadron sent in early 1945 to the Philippines ? Could say Argentina, Chile, Uruguay and Paraguay have become involved with rightwing regimes who were persuaded to join the Axis cause by Nazi agents ? How would Allied interests in the region, such as the Panama Canal, and British possessions in the Caribbean, have been affected by such a contingency ? Facing off against other Latin American states who decided to ally themselves with the UN, let's say Brazil, Mexico, and the central American states, could there have perhaps been a repeat of the highly destructive War of the Triple Alliance of the 1860s or 1870s ?