Mar 1866Spain bombards Valparaiso
16 Apr 1866Allies invade Paraguayby crossing Paraná
2 May 1866Spain bombards Callao
10 May 1866Spain abandonsChincha Islands
24 May 1866Allies repel Paraguayanattack at Tuyutí
31 May 1866France withdraws from Mexico
Aug 1866Boundary treaty betweenChile and Bolivia
Sep 1866Paraguay halts Alliedadvance at Curupaytí
Nov 1866–Aug 1867Rebellion inwestern Argentina