1866 battle between the Fenian Brotherhood and the Province of Canada; Fenian victory

Treaty of Prussia with other states in 1866

Naval operations on Lake Garda

Battle of Austro-Prussian War, 1866

1866 battle of the Paraguayan War

1866 treaty between Chile and Bolivia

1866 battle in Mexico

Capture of the Paquete de Maule

Naval confrontation in the Paraguayan War

Battle of the Paraguayan War

1866 battle during the Paraguayan War