of these entered Mexico by the garita of San Cosmé, while the other reached it by that of Belen near the citadel.
In attacking Chapultepec, it was important to consider the value of the Molino del Rey or King's Mill, and Casa Mata, both of which, as we noticed, lie on rising ground within the works designed to protect Chapultepec. Upon examination it will be found that the Molino del Rey, or King's Mill, bears the relation of a very strong western outwork both to the castle of Chapultepec and its approaches by the inclined plain which serves to ascend its summit. As the Molino del Rey is commanded and defended by the castle, so it reciprocally, commands and defends the only good approach to the latter.
1 As long as the Molino was held by the Mexicans, it would of course, form an important stronghold easily reached from the city around the rear of Chapultepec; so that if Scott attacked the castle and hill from the south, where the road that ascends it commenced, he would be in danger of an attack on his left flank from the Mexicans in the defences at Molino and Casa Mata.