All the countries Americans can't travel to as two countries announced travel ban on citizens

Several countries have barred US citizens from traveling there after Donald Trump introduced travel bans to the US.

Trump's visa restrictions apply to some 39 countries around in Africa, Asia, the Middle East, and Latin America.

Addressing the 'restrictions and limitations imposed', the White House previously said: "It is the president’s duty to take action to ensure that those seeking to enter our country will not harm the American people."

Countries with full bans include Afghanistan, Iran, Haiti, Syria, Somalia, Libya, as well as people with documents issued by the Palestinian Authority among others, while others have partial restrictions.

These restrictions have led to some countries imposing 'tit for tat' measures of their own, with Mali and Burkina Faso being the latest to do so. This means that Americans can no longer enter these countries.

Donald Trump has imposed restrictions on several countries (SAUL LOEB / AFP via Getty Images)

However, these are not the only places where there are difficulties around US citizens visiting them.

Outright travel bans are one thing, but Americans are also restricted from going to countries which are currently sanctioned by the US government.

Many of these also fall into the highest level of travel restriction - a Level Four 'Do Not Travel' advisory from the State Department.

If a country is in a Level Four restriction, that usually means that it is either considered hostile to the US or highly dangerous due to war or instability.

For example, Russia has this restriction due to Russian hostility to the US, but Ukraine because it's an active war zone.

Level Four restrictions aren't an outright travel ban, but they are an advisory that it is risky for US citizens to visit these countries.

Immigration has been at the center of Trump's second administration (Alex Wong/Getty Images)

It's not just Level Four advisories either, for example, US citizens can't travel to North Korea due to restrictions.

Cuba is another example where travel is restricted, and US citizens are only allowed to go for family visits, government business, journalism, professional or educational purposes, religious activities, humanitarian projects, or because they support the Cuban people.

So the short version is that there are some places where US citizens are outright banned, and others that you could go if you really wanted to but it's probably not the wisest idea.

Countries with a Level Four Travel Advisory

• Afghanistan
• Belarus
• Burkina Faso
• Central African Republic
• Gaza (region-specific advisory; not a country)
• Haiti
• Iran
• Iraq
• Lebanon
• Libya
• Mali
• Myanmar
• Niger
• North Korea
• Russia
• Somalia
• South Sudan
• Sudan
• Syria
• Ukraine
• Venezuela
• Yemen