 Complete the following phrase:  The most notable example was the Long March, a massive military retreat in which Mao marched in circles in Guizhou until he had confused the vastly larger armies pursuing him, and was then able to slip through Yun and Sichuan, although the retreat was completed by only one-tenth of the force that left for the Long March at Jiangxi. A sensible comparison would be Robert E. Lees surrender at 