 Nyorai kupfuurira kweiyi ndima - Muna 1963 akapedza kudzidza paRTA Command and General Staff College, uye gore rimwe gare gare paUnited States Army Command and General Staff College paFort Leavenworth. Mukati mema1960 nama1970, Chavalit akashanda mukumukira kwechiKomonisitimushandirapamwe wokudzvinyirira mumasango eThailand, uye akagadzirira varwi veThailand nokuda kwemabasa avo muHondo yeVietnam. Mukati menguva yakatevera kupandukira kwevanhu muna Gumiguru 1973, aionekwa ari pedyo neboka re Thahan Prachathippatai Masoja eDemocratic, kunyangwe iye asina kuzvizivisa pachena senhengo yeboka iri. 