Ok, I wrote a nice little blurb in response to not training for 14 "DAYS" and not 14 "WEEKS" like what you really said. I'm obviously still trying to get started for the day.
So 14 weeks is quite a bit longer than I was thinking but only changes my advice slightly I suppose. For one, are you sure there is no chance of a gym anywhere you can get into? If truly there is no place to go then I think some of your options consist of body weight exercises like pushups, pull-ups, one leg squats, etc. In addition you might want to try some GPP type work utilizing whatever you have available to you. Bring some sort of heavy duty duffel bag you can fill up to make heavy and voila, you have a nice tool you can use for carrying, lifting, walking, etc. If you look up GPP on this site you should be able to find some cool exercises you can incorporate.
Now what I originally posted and is what I think you still need to do is to make sure you also keep your calories up. This will help you maintain what you've accomplished thus far and limit tissue breakdown. You may not gain any strength on your lifts but I don't see why you can't make the best of your situation. I think you can maintain your current strength fairly well and at the same time take those 14 weeks to work on your conditioning. You might be surprised as to how that will help you in the gym.
Good luck and enjoy your travels.