HeyJoe really answered your question well... but I will be a lil more direct

Getting orders overseas is NOT difficult. There are always billets in need of a warm body, because, in at least the aviation community, many of these billets are called "hardfills"... the effect that while in a small way the orders may be career enhancing, it may take you out of the community (possibly not good), and/or out of the cockpit. Out of the flight station can hurt a pilot more so than an NFO, and I am talking in broad terms here. The key is, you need to still be in a billet where you are representing your community, that way the detailer has put you in an overseas tour, and it will show up that you DID something for the community, and you will get the pain points and check in the box mentioned in my other post.
I personally view it my Japan tour as a unique opportunity to take my family somewhere they would never have had the chance to experience... Leaving this tour behind, wit 20/20 hindsight, I still think it was a "good thing".. not entirely what I expected, and involved some working pain on my part, but not something I would have traded.