On March 20th, we reported to our readers that international citizens traveling to the United States are being urged to make sure their visas are compliant and immigration and visa paperwork are completed properly, after thousands of individuals, all of whom were foreign nationals, and a good majority of them tourists, were detained and arrested by border control officers and ICE agents at cross-border entries into the United States.

In that publication, we listed several countries who immediately warned their citizens against travel to the U.S., diligently advising them of new visa and immigration rules, as well as issues coming to the forefront for international citizens who hold passports with the gender designation X or for individuals who have changed their gender.

To date, that list has grown considerably, and we have no doubt it will continue to grow. That being said, we want to make it easier for our international readers to have clear access to new travel advisories and warnings being issued for foreign citizens of international countries who may be planning a trip to America in the future.

The travel advisories from international countries warn of volatile U.S. immigration crackdowns at U.S. border entry points, increased visa restrictions for foreign nationals, and the suspension of a policy once set in place to allow transgender people to update their passports, warning that foreign citizens are now required to declare their gender assigned at birth when completing visa or ESTA application.

In addition, beginning April 11th, all foreign nationals, including Canadians, must register with the U.S. government as “aliens” for visits to America that exceed 30 days. This new rule applies to foreign nationals 14 or older and again for visits over 30 days.

The travel advisories and warnings from foreign officials come on the heels of an executive order issued by the current U.S. president and the White House Administration's immigration crackdown, and the recent announcement that the U.S. is considering a travel ban on 43 countries.

Below, you will find a list of the countries warning against all travel to the United States in alphabetical order for your convenience. As more countries join the movement, we will continue to update this list in real time.

If you’re a foreign national planning on visiting the U.S., we encourage you to keep a watchful eye on this page for new information. Let’s get started.

: The Belgian FPS Foreign Affairs is said to be updating its current travel advice for its residents regarding travel to the United States in order to warn citizens of the intense immigration crackdown occurring at borders across the U.S., in addition to the “changing attitude towards transgender people and the LGBTQI+ community and the difficulties they may encounter when traveling to the United States will also be further elaborated in the travel advice," according to David Jordens, spokesperson for the Belgian FPS Foreign Affairs.

: The Canadian government has published and updated travel advisory for its citizens warning them that if they have plans of staying in the U.S. for more than 30 days they are required to register with U.S. authorities as ‘aliens,’ beginning on April 11th.

"Canadians and other foreign nationals visiting the United States for periods longer than 30 days must be registered with the United States Government. Failure to comply with the registration requirement could result in penalties, fines, and misdemeanor prosecution," the advisory states.

Further advice warns Canadians of the recent and unlawful ‘immigration crackdowns’ at U.S. borders focused on foreign nationals, including Canadians, who may have ‘violated their visa.’

: The Denmark Ministry of Foreign Affairs has added a 'new section under Denmark's visa rules for its citizens entering the United States.’

If your passport has the gender designation X, or if you have changed your gender, the Ministry of Foreign Affairs advises verifying the conditions of entry into the United States with authorities before arriving there or risk being turned away at the border or, worse, arrested, detained, and deported.

"If the gender on an applicant's passport differs from the gender confirmed at birth, U.S. authorities may deny entry,” Ministry officials said.

: The Finnish Ministry of Foreign Affairs has also advised its citizens in a travel advisory update to the U.S. the same information as Denmark in regards to the “gender designation X, or if you have changed your gender,” and what is at risk if Finnish citizens do not comply with the new changes imposed by the U.S. government.

: The French Foreign Ministry has also updated its travel advice for its citizens visiting the United States. As of March 25th, the French Foreign Ministry also warns of gender regulation, warning that "travelers are now required to declare their gender assigned at birth when completing visa or ESTA applications."

"In particular, for new visa or ESTA applications, it is important to note that a section has been added that requires (...) applicants to state their 'gender assigned at birth,'" the foreign ministry in Paris said.

“It is strongly recommended that you regularly consult the website of the United States Embassy in France and contact the airline to check for any changes or new measures adopted,” it now says.

“Travelers who would like more information are recommended to consult the State Department's online FAQ or to contact the American consular authorities in France before departure,” the website says.

: The German Foreign Ministry updated its travel advisory for its citizens visiting the U.S. after several German tourists were stopped by border control officers and ICE agents at U.S. border entries, accused of violating their visas, then arrested, detained, and deported weeks after the unthinkable border crackdowns.

“Neither approval through the U.S. ESTA system nor a U.S. visa means people will be granted entry to the United States every time. The final decision on whether a person can enter the U.S. lies with the U.S. border authorities," a spokesperson for Germany's foreign ministry said on Wednesday.

: Ireland’s government website has recently updated its travel advisory for Irish citizens traveling to the U.S. to also warn of the ‘gender X’ and gender change challenges they may face when applying for a travel, work or school visa to the country.

“U.S. ESTA and visa application forms require travelers to declare their sex, which should reflect their biological sex at birth. Travelers with an "X" marker on their passport or whose gender differs from the one assigned at birth are advised to contact the U.S. Embassy in Dublin for further information on specific entry requirements,” the website indicates.

Irish citizens heading to the U.S. on travel will need to obtain either a visa or an Electronic System for Travel Authorization (ESTA) visa waiver.

: The Dutch Foreign Ministry has updated its travel advice for the United States, warning its citizens that “U.S. customs and laws regarding sexual minorities may differ from those in the Netherlands,” and Dutch citizens going to the U.S. on an ESTA or other visa, may risk arrest, imprisonment, and deportation if they do not adhere "strictly" to their stated travel purpose, or have the proper documents on their person upon arrival, or are not visa compliant.

"Always make sure you have the proper entry documents. These are carefully checked upon entry. Is something not correct? That may be reason for the US authorities to refuse you entry to the U.S.,” the new travel advisory guidelines state.

: The Norwegian Foreign Ministry has made updates to its travel advisory for its citizens visiting the United States, warning also of the tighter border restrictions, risks upon arrival at U.S. borders, and new policies regarding ‘gender X’ and gender changes, even for Norwegians possessing a valid visa or Electronic System for Travel Authorization (ESTA).

"The ESTA or visa does not guarantee entry. It is the immigration authorities on arrival who make the final decision. The Norwegian authorities cannot intervene in this decision,” the update states.

"Criminal offenses in the United States, false declarations about the purpose of stay, or that you have previously stayed in the United States longer than allowed can lead to rejection at the border."

Norway's guidance adds: "When applying for an ESTA or a visa to the United States, there are two gender designations to choose from: Male or female. The United States only recognizes the applicant's gender at birth."

: The Portuguese Ministry of Foreign Affairs updated its travel guidance for its citizens visiting the United States, and warned travelers that "possession of an ESTA or a visa does not constitute an automatic right of entry to the USA," as the acceptance of entry is determined "by the border agent upon arrival in U.S. territory."

The Ministry has also warned Portuguese citizens of increased border restrictions, risks, and changes regarding gender recognition, adding that ensuring visas are compliant and documentation is processed accurately reduces the chances of issues at the U.S. border entry point.

: The U.K.'s Foreign, Commonwealth and Development Office (FCDO) has made a significant change to its travel advice for UK residents visiting the United States after British tourists and citizens had been told they had violated their visas when attempting to enter U.S. border entry points, resulting in them being arrested, detained, then deported back to the U.K. after several weeks.

FCDO wants UK citizens to be fully aware that if their visas are not compliant or if they do not have the proper documentation for entry into the U.S., they risk arrest, detainment, and deportation under the new immigration policies imposed by the current U.S. president.

"You should comply with all entry, visa, and other conditions of entry. The authorities in the U.S. set and enforce entry rules strictly. You may be liable to arrest or detention if you break the rules," the guidance reads.