You can find out more about Mark here and perhaps join his efforts:
https://www.facebook.com/mark.oconnor.7359

Veterans  Vietnam Restoration Project
The Veterans Vietnam Restoration Project (VVRP) is a very small, grass roots, non-profit, tax-exempt (501 (c) (3)), humanitarian, non-governmental organization (NGO), located in Garberville, California USA (population 1,350). We were founded in 1988, by Fredy Champagne and a rag-tag group of local veterans. We are totally dependent upon donations for our survival.

The VVRP's primary mission is to provide American Vietnam War Veterans (and others who feel the need) with opportunities to return to Vietnam to do humanitarian aid projects. So far we have arranged for 62 Americans (56 men and 8 women) to undertake such projects. (information current as of June 1994).