 Later six xenon searchlights per squadron were authorized after advisers questioned the wisdom of limiting $15 million worth of fighting equipment to daytime use by refusing to spend $300,000 on searchlights.Unfortunately, the decision to dispense with the vehicle-launched bridge section was not reconsidered, and lack of bridging during the PAVN offensive proved a major factor in the loss of tanks.Training for the 20th Regiment began at Ái Tử Combat Base near Quảng Trị, but proceeded slowly because of many problems, particularly in maintenance.