Sister Cities The Sister City Concept The Sister City concept, which is based on the belief that world peace can be achieved through better understanding between ordinary people, was originated by career soldier and US President Dwight Eisenhower. After the Second World War, Sister City relationships became a world wide phenomenon, all with a common goal: '...to develop enduring networks of communications, to cut across boundaries and to reduce the likelihood of polarisation and conflict between nations...' Mastertons Sister Cities Masterton has sister city relations with Hatsukaichi in Japan and Changchun in China. Masterton also has a twinning relationship with Armidale in Australia. For more information on these cities click on the links below - Hatsukaichi - link to come Changchun Armidale This page is currently being updated.