The Battle of Tarapacá occurred on November 27, 1879, during the Tarapacá Campaign of the War of the Pacific. A Chilean column of 2,300 soldiers led by Colonel Luis Arteaga recklessly attacked a numerically superior Peruvian contingent of 4,500 troops at Tarapacá commanded by Gen Juan Buendía, resulting in a harsh defeat. The Chilean 2nd Line Regiment was the most damaged unit, losing almost half of its force, along with its commander Col. Eleuterio Ramírez and his second in command, Lt. Col. Bartolomé Vivar. Also, the unit lost its banner, which was recovered six months later after the battle of Tacna. Despite the victory, the Allies could not contest for the domination of the Tarapacá department, abandoning it to Chilean control.