On July 2, 1898, Parker's guns were placed in reserve. On the 4th, Parker ordered the three operational Gatlings moved into the battle line. The wheels of the gun carriages were removed, and the Gatlings, along with two M1895 Colt–Browning machine guns (a gift from Col. Roosevelt) were placed in breastworks where they could command various sectors of fire. The fourth Gatling was repaired and placed in reserve behind the others. However, it was soon moved to Fort Canosa, where it was used to fire 6,000 to 7,000 rounds into the city of Santiago during the siege of that city, causing enemy casualties, disrupting communications, and demoralizing the defenders. After Parker's exploits became known by the press, he would forever after be referred to as "Gatling Gun" Parker.