大陸打通作戦
The Second phase was more successful, with British medical and demolition experts assigned to the Surprise troops. This phase ran from February 1943 to February 1945, and operated under standard British Military command, as opposed to the first phase which operated under the SOE. Learning lessons from the unsuccessful first phase, the second phase worked quite well, with valid assistance to the Chinese guerrilla actions. However, with the major Japanese Operation Ichi-Go underway, the Mission 204 soldiers were pulled out of China, being flown out of the area by the USAAF whose bases at Guilin and Luizhou were the targets of the Japanese.