He was appointed UK High Commissioner to Mozambique in 1992, at the time of the Rome General Peace Accords signed between the government of Mozambique and RENAMO, ending the 16-year long Mozambican Civil War; he is credited with helping - with other foreign missions - to keep the fragile peace, notably by his relationship with RENAMO leader Afonso Dhlakama. Multi-party elections held in 1994 ushered in a democratic period for the country; Edis played a key role by dissuading RENAMO and other opposition parties - aggrieved by electoral-technical issues - from declaring a boycott on the night before the poll. In 1995, Mozambique joined the Commonwealth of Nations. Edis was next posted as UK ambassador to Tunisia in 1995 through to 1999. His last posting was as UK ambassador to Algeria from 2001 to 2002.