Nathaniel P. Banks receives orders assigning him to command the Federal Department of the Gulf, operating mostly in Louisiana and Texas. Banks would eventually succeed the controversial Benjamin F. Butler.
Federal army-navy forces occupy one of the most important points on the Texas coast.
A new Confederate ironclad blasts through Federal ships and threatens to turn the tide of the war on the Mississippi River.
David G. Farragut begins assembling a Federal naval squadron to take on Vicksburg, one of the last major Confederate strongholds on the Mississippi River.
The Federal naval squadron of David G. Farragut tries following up its capture of New Orleans by pushing further up the Mississippi River. But they meet unexpected resistance.
Benjamin F. Butler arrives with his Federal troops to impose military rule over New Orleans.