A nation's image of its past helps to determine its conduct through continuing history. When this image is particularly sharp, it becomes a sacred reference for the formulation of policy. A national image is a melange of fact, fancy, and fiction. Carefully preserved in folklore and enthroned as tradition, this image can be invoked for political purposes that transcend party and class factionalism, and serve to unite the nation in a supreme sacrifice for national purpose.Paraguay has such an image. In its past the Paraguay of 1928 saw a peaceful, progressive people who had been plunged into a war of extermination. “Veneer ó morir!” was no idle slogan of another era. It was a destroyed, shattered Paraguay that died with the Marshal on the banks of the Aquidabán. From the terrible conflict of 1864-1870, Paraguay emerged with large areas of its claimed territory forever lost, and with much of the rest in jeopardy. The arbitration of 1878, which eliminated one greedy enemy, was still fresh in Paraguayan memories when the Vanguardia incident of 1928 once more sounded the alarm. In the intervening years an image of the Paraguayan War had taken shape.