In California, residents also fought the American army. In 1847, Californios staged battles throughout Southern California against the American conquest, including the Battle of Los Angeles and the Battle of San Pasqual (present-day San Diego). The United States Navy, believing that cutting off supplies to the Californios would ensure their defeat, implemented blockades along the Pacific Coast and Gulf of Mexico. As a result of these actions, the Navy's Pacific Squadron subsequently conquered Monterey, San Francisco, and San Diego, virtually guaranteeing victory for the U.S. in California. The war ended on September 8, 1847, when Winfield Scott took control over Mexico City in the Battle for Mexico City. The U.S. and Mexico soon after entered negotiations for conditions of surrender.