Leon Panetta (left) became the first Pentagon chief to visit Vietnam's Cam Ranh Bay during a nine-day tour of Asia
US Secretary of Defense Leon Panetta (left) speaks to the crew of the USNS Byrd Ship during a visit to Vietnam's Cam Ranh Bay on June 3. Panetta has arrived in India for talks focusing on Washington's strategic shift towards Asia, as the United States eyes New Delhi as a potentially pivotal partner.