The government of the United States also looked with disfavor on the plan of forcible organization, promptly ordering naval forces to the Central American coasts for the protection of American interests. The Nicaraguan congress had, on the 8th of March, resolved to reject the union decreed by Guatemala, and to energetically oppose what they called Barrios' attempt to impose his will, and to constitute himself a dictator over Central America. The executive was accordingly empowered to make provision, singly or conjointly with other states, for national defence at whatever sacrifice. The government of Costa Rica adopted a similar course, the executive being clothed with extraordinary powers.[XXI-56] [Sidenote: DEATH OF BARRIOS.] Finally, the three republics of Salvador, Nicaragua, and Costa Rica appealed to the governments of the United States and Mexico to interfere on their behalf against Barrios' projects. Mexico responded at once. President Diaz notified Barrios on the 10th by telegraph, that the governments and people of those three republics had rejected his scheme, which had, moreover, produced an impression on the Mexican people, demanding on the part of their government the assumption of an attitude suitable to an emergency by which the independence and autonomy of nations of this continent had been menaced. Barrios telegraphed back that his answer would go by mail. He afterward issued an address to the Mexican nation, of a friendly nature.[XXI-57] But the die was cast. War was now unavoidable. The three opposing governments, for their mutual protection, entered on the 22d of March into an alliance offensive and defensive,[XXI-58] and took active measures to give effect to the union. Guatemala on her part, and her ally Honduras, had not been slow in their preparations for the impending strife. Regardless of all opposition, Barrios was still bent upon his difficult task, and for its accomplishment marched an army into Salvadoran territory. The events of this campaign are given in another chapter, in connection with the history of Salvador, where the fighting took place. Let it suffice to say here that the invaders met with disaster, and Barrios lost his life, fighting heroically, on the 2d of April.[XXI-59] His remains were rescued, it is said at the cost of twenty lives, and conveyed to Guatemala, where they were interred with civic and military honors. His widow, Francisca Aparicio de Barrios, and their seven children, being escorted to the port of San José by a military guard, embarked for San Francisco, accompanied by friends. They afterward transferred themselves and their belongings to New York, where Señora Barrios established her residence, it being understood that the family has been left amply provided with pecuniary means.[XXI-60]