An executive order signed by President Trump has sparked concern on an international level.

The intent of this order, according to President Donald Trump, is to protect U.S. borders from domestic terrorist attacks. To accomplish this, there is a travel ban placed on seven countries: Iran, Iraq, Libya, Somalia, Sudan, Syria and Yemen.

The Telegraph News states that “the order bars citizens of seven Muslim-majority countries from entering the US for a period of 90 days. It also suspends the United States’ refugee system for a period of 120 days.”

AP Government and Psychology teacher John Tipsword said that “it needs to be noted that it is rooted from a law that was passed in the Omnibus Bill in 2015 by President Obama that listed and gave the ability for prevention of travel from the seven countries. However it’s implementation, to me, seemed to be chaotic and not really targeting those who could cause us harm but rather just targeting those that are from a particular country, and it opened the travel ban up for criticism and misinformation as calling it a Muslim ban which it is not, calling it just a blanket executive order or a directive decision, which it is not, it is based on a law that was passed two years ago.”

President Trump said his “extreme vetting” system will help “keep radical Islamic terrorists out of the US.”

The order was not intended to be placed against people holding visas or green cards. The Department of Homeland Security has stated that those who have a green card will be allowed into the country on a case-by-case basis and deal with extra security. However, there are cases of people entering the country, just to be put on a return flight, as with a family of six who traveled to the U.S. to be sent back to Doha, Qatar as reported by Rene Marsh and Athena Jones of CNN.

Scott Walker, Governor of Wisconsin, said that “a resettlement program to help refugees is compassionate and one that I support, but we should ensure we are doing everything possible to put the safety of our citizens first,” according to Wisconsin Public Radio.

There are, however, claims that the ban is unconstitutional.

Those opposed to the travel ban plan to legally challenge the extreme vetting due to violations of the first and fifth amendments of the constitution, stating that it violates people’s rights to due process as well as favoring Christians over Muslims, violating freedom of religion, said the Telegraph News.

Tipsword, however, emphasized that the ban is not over people of a specific religion. Although he felt it important to add that people do have the right to protest as the order may not have been executed in the best way and seems to be based on people’s country of origin and not necessarily directed towards those specifically targeting U.S. borders.