Again, until he reached his post, Banks was not informed that the Confederates were in force anywhere on the river save Vicksburg, yet, in fact, Port Hudson, 250 miles below Vicksburg and 135 miles above New Orleans, was found strongly intrenched with twenty-nine heavy guns in position and garrisoned by 12,000 men. Long before Banks could have assembled and set in motion a force sufficient to cope with this enemy behind earthworks, the 12,000 became 16,000. Moreover, Banks was not in communication either with Grant or with McClernand; he knew next to nothing of the operations, the movements, or the plans of either; he had not the least idea when the expedition would be ready to move from Memphis; he was even uncertain who the commander of the Northern column was to be. On their part, not only were Grant, the department commander; McClernand, the designated commander of the Vicksburg expedition; and Sherman, its actual commander, alike ignorant of every thing pertaining to the movements of the column from the Gulf, but, at the most critical period of the campaign, not one of the three was in communication with either of the others. Under these conditions, all concert between the co-operating forces was rendered impossible from the start, and the expectations of the government that Banks would go against Vicksburg immediately on landing in Louisiana were doomed to sharp and sudden, yet inevitable, disappointment. Grant, believing himself free to dispose of McClernand's new levies, had projected a combined movement by his own forces, marching by Grand Junction, and Sherman's, moving by water from Memphis, on the front and rear of Vicksburg. Sherman set out from Memphis on the 20th of December in complete ignorance of Halleck's telegram of the 18th, conveying the President's positive order that McClernand was to command the expedition. Forrest cut the wires on the morning of the 19th just in time to intercept this telegram, as well as its counterpart, addressed to McClernand at Springfield, Illinois. On the 29th of December, Sherman met with the bloody repulse of Chickasaw Bluffs. On the 2d of January he returned to the mouth of the Yazoo, and there found McClernand armed with the bowstring and the baton.