Knowing as much emergency contact information as possible, especially out of the country where things are done very differently, is always very important.
I have not been to another country, but my friends from other countries say that some people of those other countries prey on people who do not know enough information about their rights and the laws and the way of life there.
I know you can never be totally prepared, but it is good to be as prepared as you possibly can be.
It is vitally important to look up information of the United States Embassy and/or the consulate for any legal questions or concerns you may have.
You should also keep a copy of addresses and phone numbers of the consulate, because you may not have people to help you in other countries, or they may not understand you.
It is a good idea to research information about the city and country you are going to.
If you can ask some people who have been there or who have lived there, that you can trust, usually they will give you helpful and important incite of what you need to be wary of and so forth.