Read it through once

“And now commenced a movement of the most perfect arrangement and successful generalship—the withdrawal of the whole of the various forces, a combined movement requiring the greatest care and skill. First, the garrison in immediate contact with the enemy at the furthest extremity of the Residency position was marched out. Every other garrison in turn fell in behind it, and so passed out through the Bailie Guard gate, till the whole of our position was evacuated. Then Havelock's force was similarly withdrawn, post by post, marching in rear of our garrison. After them in turn came the forces of the Commander-in-Chief, which joined on in the rear of Havelock's force. Regiment by regiment was withdrawn with the utmost order and regularity. The whole operation resembled the movement of a telescope. Stern silence was kept, and the enemy took no alarm.”