 See also Battle of Luang Namtha

Sigma I-63 was played in Spring 1963, in the wake of the disastrous Battle of Luang Namtha.In that battle, the Royal Lao Army had run from half its number of communist soldiers in May 1962, and did not stop for 160 kilometers.Sigma I-63 was held with senior level officials setting policy for the Red and Blue Teams.