<P> The U.S. state of Texas declared its secession from the United States of America on February 1 , 1861 , and joined the Confederate States on March 2 , 1861 , after it replaced its governor , Sam Houston , when he refused to take an oath of allegiance to the Confederacy . As with those of other States , the Declaration was not recognized by the United States government at Washington . Some Texan military units fought in the Civil War east of the Mississippi River , but Texas was most useful for supplying soldiers and horses for Confederate forces . Texas ' supply role lasted until mid-1863 , after which time Union gunboats controlled the Mississippi River , making large transfers of men , horses or cattle impossible . Some cotton was sold in Mexico , but most of the crop became useless because of the Union naval blockade of Galveston , Houston , and other ports . </P>
<P> The U.S. state of Texas declared its secession from the United States of America on February 1 , 1861 , and joined the Confederate States on March 2 , 1861 , after it replaced its governor , Sam Houston , when he refused to take an oath of allegiance to the Confederacy . As with those of other States , the Declaration was not recognized by the United States government at Washington . Some Texan military units fought in the Civil War east of the Mississippi River , but Texas was most useful for supplying soldiers and horses for Confederate forces . Texas ' supply role lasted until mid-1863 , after which time Union gunboats controlled the Mississippi River , making large transfers of men , horses or cattle impossible . Some cotton was sold in Mexico , but most of the crop became useless because of the Union naval blockade of Galveston , Houston , and other ports . </P>
why did texas originally joined the confederate states of america
why did texas originally joined the confederate states of america
March 2 , 1861
March 2 , 1861