dignity of Guatemala.[XIX-26] The government of Salvador on the 26th of March decreed the treaty of amity and alliance concluded with Guatemala January 24, 1872, to be no longer in force.[XIX-27] [Sidenote: THE WRATH OF BARRIOS.] Barrios' plan for the campaign was to assail Salvador on the west direct from Guatemala with an army under his personal command, and at the same time by a movement from Honduras under General Gregorio Solares on the eastern departments of San Miguel and La Union. The Mexican general, Lopez Uraga, adjutant-general of Barrios, was stationed with a garrison at Jutiapa to guard the army supplies. At this time the Salvadorans unsuccessfully attacked an isolated position on the frontier, which roused the ire of Barrios. He then directed Uraga to move the supplies to Chingo, whence he started himself to the invasion of Salvador. Solares had not yet been heard from. He had first of all to get Medina and Leiva out of the way in Honduras. The Guatemalan president then marched to the Coco hacienda, and hearing that Chalchuapa was abandoned, occupied it at once. The Salvadorans had their headquarters at Santa Ana. The armies which were to encounter each other on the field of battle were the most numerous Central America had ever seen. Barrios with 8,000 or 9,000 men laid siege of Ahuachapan. Uraga stationed himself at Chalchuapa with about 1,500, and Chingo was left with a handful of men.[XIX-28] The Guatemalans who have occupied Apaneca were driven away, and on returning thereto encountered the Salvadorans on the 15th of April, and after a fight lasting from eight in the morning till nightfall, were routed, and pursued as far as Atiquizaya, sustaining heavy losses.[XIX-29] Meantime the belligerent armies in the east were not idle. Solares after hard fighting from the 17th to the 19th of April won a signal and decisive victory at Pasaquina over the Salvadorans commanded by generals Brioso, Delgado, Sanchez, and Espinosa; the results of which were that he obtained control of the departments of San Miguel and La Union, menacing those of San Vicente and Usulutan, and even the official residence of President Valle; thus depriving the government of large resources, and disheartening the army of Gonzalez in Ahuachapan and Santa Ana.[XIX-30] After this victory, Solares being reënforced, the Salvadorans, now reduced to 800 or 900, precipitately retreated to San Miguel, but by desertions on the march dwindled down to less than 200. The defence of San Miguel became impossible, and Solares occupied it, as well as La Union. There being insufficient elements to defend San Vicente, the government ordered the scattered garrisons to concentrate at the capital. [Sidenote: CONVENTION AND TREATY.]