How build an orgnazation to give support to my relatives to hold on to their civlization? ...
Answers: what mean you? details more requirement of.
With all due respect; a few more details would minister to; even if no one truly can aid; in more than freshly suggesting.
It might help to know who YOUR PEOPLE are? IE: The intercontinental society; or a small band of Nomads surrounded by some obscure country.
It might assist to know how you define "Their Civilization"? IE: their Culture; their mortality rates; strength issues; governmental issues; etc.
It might help to know your plane of commitment; your current or possible resources; both financial and others likewise committed; how you demarcate "organization" and any notion of its scope; etc.
Steven Wolf