The requirement for amphibious withdrawal does not come along often, but when it does, there is little better guidance than how it was done in December 1950 in Korea—when it had to be done on short notice, on a large scale, and under fire.
"A Remarkable Military Feat: The Hungnam Redeployment, December 1950,"
Naval War College Review: Vol. 65
, Article 8.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol65/iss2/8