As if we don’t have enough problems in the travel industry, the United States has issued several advisories for several countries in the past few months.

The most recent one is two China, as they placed a level two advisory label on the country, warning Americans not to travel there because they may not be able to return. The Department of State called out their “arbitrary enforcement of local laws as well as special restrictions on dual U.S.-Chinese nationals.” If you’re new to the travel game, you’re probably wondering what’s the difference between the travel advisory levels.

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A level one advisory warns travelers to “exercise normal precautions,” while a level two advises increased caution. A level three advisory suggests that Americans “reconsider travel, and a level four recommends Americans stay away from traveling to a certain country altogether. Some levels are more serious than others, but the U.S. Department of State still advises you to do a few things to protect yourself.

First, make sure you follow the Department of State on Facebook and Twitter. Then review all crime and safety reports for the country you’re visiting. After that, enroll in the Smart Traveler Enrollment Program so you can receive alerts and lastly, as a traveler, be sure to have a contingency plan for emergencies. Some of the countries that are listed under the level one advisory are Argentina, Botswana, Croatia, Czech Republic, Djibouti, Fiji, Japan, Poland, Qatar, and United Arab Emirates, to name a few.

These countries are listed as level two advisory countries:

  • Azerbaijan
  • Belgium
  • Belize
  • Burma (Myanmar)
  • China
  • Cote d’Ivoire
  • France
  • Indonesia
  • Israel (The West Bank and Gaza)
  • Italy
  • Jordan
  • Russia
  • Serbia
  • Sierra Leone
  • Spain
  • Tanzania
  • Togo
  • Tunisia
  • Uganda
  • Ukraine
  • United Kingdom

Here are countries listed as level three advisory:

  • Burkina Faso
  • Burundi
  • Chad
  • The Democratic Republic of the Congo
  • El Salvador
  • Guinea-Bissau
  • Haiti
  • Honduras
  • Lebanon
  • Mauritania
  • Nicaragua
  • Niger
  • Nigeria
  • Pakistan
  • Sudan
  • Turkey
  • Venezuela

Lastly, stay away from these spots, since they are listed at level four:

  • Afghanistan
  • Central African Republic
  • Iran
  • Iraq
  • Libya
  • Mali
  • North Korea (Democratic People’s Republic of Korea)
  • Somalia
  • South Sudan
  • Syria
  • Yemen