The Battle of Henderson's Hill or Bayou Rapides saw a reinforced Union Army division led by Brigadier General Joseph A. Mower opposed by a regiment of Confederate Army cavalry and attached artillery under Colonel William G. Vincent. That evening, during a rainstorm, Mower sent one infantry brigade on a circuitous march to gain the rear of Vincent's command. The brigade's subsequent attack surprised and captured most of the Confederates. Mower could not exploit his minor victory because the arrival of additional Federal army and naval units was delayed. This clash occurred during the Red River campaign of the American Civil War which saw Major General Nathaniel P. Banks' Union army try to seize Shreveport, Louisiana, from its Confederate defenders led by Lieutenant General Richard Taylor.

The Red River campaign, also known as the Red River expedition, was a major Union offensive campaign in the Trans-Mississippi theater of the American Civil War, which took place from March 10 to May 22, 1864. It was launched through the densely forested gulf coastal plain region between the Red River Valley and central Arkansas towards the end of the war. The offensive was intended to stop Confederate use of the Louisiana port of Shreveport, open an outlet for the sugar and cotton of northern Louisiana, and to split the Confederate lines, allowing the Union to encircle and destroy the Confederate military forces in Louisiana and southern Arkansas. It marked the last major offensive attempted by the Union in the Trans-Mississippi Theater.