...ly 12,000 of them had been mustered into the service. Of these, 9,000 were sent to reinforce Taylor. Wool went up the Rio Grande with about 3,000 troops, crossed the river at Presidio, penetrated Mexico , and, in the last of October, reached Monclova, 70 miles northwest of Monterey. He pushed on to Coahuila, where he obtained ample supplies for his own and Taylor's troops. General Taylor had agr...