According to the Associated Press, President Donald Trump signed a proclamation that replaces his 90-day travel ban with new restrictions on travelers from countries such as Chad, Iran, Libya, Somalia, Syria, Yemen and North Korea.

Trump's Muslim-ban expired last weekend, when the new travel restrictions were announced.

“Making America safe is my number one priority. We will not admit those into our country we cannot safely vet,” tweeted Trump.

According to the Department of Homeland Security, these countries have been listed due to their failure to share sufficient information with the U.S. DHS failed to say what information these countries failed to share.

The travel restrictions will continue indefinitely and will also affect certain Venezuelan government officials and their immediate families from gaining entry into the U.S.

The ACLU has accused the Trump administration of including these officials and North Koreans as a way of trying to pretend that this travel ban is not a Muslim ban.

“The fact that Trump has added North Korea — with few visitors to the U.S. — and a few government officials from Venezuela doesn’t obfuscate the real fact that the administration’s order is still a Muslim ban,” Anthony D. Romero, the executive director of the American Civil Liberties Union, said. “President Trump’s original sin of targeting Muslims cannot be cured by throwing other countries onto his enemies list.”

The ACLU fought the first Muslim ban, and plans to fight this new travel ban.

Just how does this new ban work? Like this:

Current valid visas will not be revoked, and case-by-case waivers for citizens of these five countries can be permitted. Citizens of some of the countries, like Iran, can apply for student and cultural exchange visas, but not tourist or business visas.

Chad is one of the countries targeted by Trump's travel ban, but experts are puzzled as to why the Central African nation was added to the list.

“It’s a head-scratcher and also strange for diplomatic reasons,” Michael Shurkin, a senior political scientist at the RAND Corporation, said. “In terms of security, Chad is actually relatively capable.”

According to NBC News, Chad has dedicated a close partnership with the U.S. and has been quite cooperative regarding necessary security precautions. Chadian soldiers have served as peacekeepers in the region, and have helped Nigeria to fight Boko Haram.

However, according to Trump's proclamation, “Chad does not adequately share public-safety and terrorism-related information and fails to satisfy at least one key risk criterion.”

As with North Korea and Venezuela, some officials believe something more sinister is behind the country's inclusion.

“Here you have a country that in terms of the most important political issue in Africa, terrorism, is on the right side," said a senior fellow at the Center on Foreign Relations and former U.S. ambassador to Nigeria, John Campbell. "It is one of the poorest countries in the area. American airports are not overwhelmed by Chadians arriving. You put all this together and I fall back on incompetence."

Analysts have also suggested that the main reason for Chad being included on the list is because the State Department still lacks to fill key positions, and that current State Department officials may not know anything at all about the country or Africa.

“Chad is the most stable partner for the West in the Sahel,” Ryan Cummings, director of the risk management company Signal Risk, said. “This could isolate one of the West’s best partners in countering terror. They have been involved in more regional security operations than other countries. It’s almost nonsensical.”

The restrictions will go into effect come October 18.