Don Manuel Flores assumed the government of New Spain on the 16th of May, 1787, but his power over the finances of the nation was taken from him and given to Fernando Mangino, with the title of _Superintendente sub-delegado de Hacienda_. Flores was thus left in possession solely of the civil administration generally, and of the military organization of the viceroyalty. Being satisfied that the ordinary _militia_ system of New Spain was inadequate for national protection during war, he immediately devoted himself to the forced levy and equipment of three regiments of infantry, named "Puebla," "Mexico" and "New Spain." The command of these forces was given to the most distinguished and noble young men of Mexico;--and as the minister Galvez died, and Mangino was, about this period, transferred to the Council of the Indies, the superintendence of the finances of Mexico, was appropriately restored again to the viceroyal government. The northern part of Mexico, in 1788 and for many previous years had been constantly ravaged by the wild Indian tribes that ranged across the whole frontier from the western limits of Sonora to the Gulf of Mexico. Immense sums were squandered in the support of garrisons or the maintenance of numerous officers, whose duty it was to hold these barbarians in check. But their efforts had been vain. The fine agricultural districts of Chihuahua, New Leon, New Mexico and even in parts of Texas, had attracted large numbers of adventurous pioneers into that remote region; yet no sooner did their fields begin to flourish and their flocks or herds to increase, than these savages descended upon the scattered settlers and carried off their produce and their families. Whenever the arms of New Spain obtained a signal victory over one of these marauding bands, the Indians would talk of peace and even consent to bind themselves by treaties. But these compacts were immediately broken, as soon as they found the country beginning to flourish again, or the military power in the least degree relaxed.