You're probabluy asking this is the wrong place, but NorthWest and KLM are part of Skyteam ( http://www.skyteam.com ). Malaysia isn't part of one of the big alliances, but it does have FF partnerships with KLM, NWA, Virgin & Swiss. See: http://hq.malaysiaairlines.com/mys/e...s/partners.asp

But there are many, many RTW tickets available with all sorts of combinations of carriers which often go across the boundaries of the big alliances.