Summary:
If you are an American passport holder, we recommend that you register with the Smart Traveller Enrolment Program (STEP). This is a free service that allows U.S. citizens to receive security updates from the nearest U.S. Embassy or Consulate. You can find further information here: https://step.state.gov/
Alternatively, if you are not an American passport holder, we recommend you register with your respective embassy before you travel.