The officering of these new troops was a difficult and delicate task, and so far as company officers were concerned, there seemed no better way at the beginning than to let the enlisted men elect their own, as was in fact done. In most cases where entirely new companies were raised, it had been by the enthusiastic efforts of some energetic volunteers who were naturally made the commissioned officers. But not always. There were numerous examples of self-denying patriotism which stayed in the ranks after expending much labor and money in recruiting, modestly refusing the honors, and giving way to some one supposed to have military knowledge or experience. The war in Mexico in 1847 was the latest conflict with a civilized people, and to have served in it was a sure passport to confidence. It had often been a service more in name than in fact; but the young volunteers felt so deeply their own ignorance that they were ready to yield to any pretence of superior knowledge, and generously to trust themselves to any one who would offer to lead them. Hosts of charlatans and incompetents were thus put into responsible places at the beginning, but the sifting work went on fast after the troops were once in the field. The election of field officers, however, ought not to have been allowed. Companies were necessarily regimented together, of which each could have but little personal knowledge of the officers of the others; intrigue and demagogy soon came into play, and almost fatal mistakes were made in selection. After a time the evil worked its own cure, but the ill effects of it were long visible.