In 1979, the Iranian Revolution saw an increased US presence in the Persian Gulf and Indian Ocean. In response, the Navy maintained at least one carrier battle group in the vicinity of the Gulf. The seizing of hostages at the embassy in Tehran further exacerbated tensions leading to VQ-2 manning of Indian Ocean carrier and Diego Garcia detachments alongside VQ-1. This manning would continue until the third phase of the Lebanese Civil War in 1982.