The group issued the warning through an open letter signed by Christopher Miller, chairman of the Special Operations Association of America (SOAA). The group is composed of Army Rangers and Green Berets, Navy SEALs, Marine Raiders, Air Force Air Commandos and other special forces.

According to the letter, America faces a "gravely" serious threat of a terrorist attack inside the country. Miller also wrote that the SOAA is "concerned by the current heightened risk of terrorist attacks against targets inside the United States and both U.S. and allied interests abroad." The SOAA chairman added that the wide open southern border with Mexico is another factor for this.

"This risk is compounded by developments in the Middle East and the porous, unsecured southern border through which we have seen numerous instances of individuals on terrorist watchlists and others from adversarial countries attempt to enter the U.S.," Miller continued. 

"Those are the ones we know about only because they were detected. We do not know how many other terrorists are already currently inside the United States."

According to Miller, who served as acting defense secretary toward the end of former President Trump's first term, Biden's slapdash withdrawal from Afghanistan is the main reason for this threat. This, he added, has left America "without a viable stay-behind or over-the-horizon counterterrorism and intelligence capability to suppress threats." It has also facilitated a power vacuum that has allowed extremist groups to flourish again.

"The U.S. has lost significant intelligence collection capabilities in the region, leaving federal authorities blind and deaf to emerging threats emanating from the region. The creation of new and reestablishment of previous terrorist training camps within Afghanistan has led to successful, deadly attacks by the Islamic State [of Iraq and Syria's] (ISIS) regional branch against targets in Iran and Russia and elsewhere, adding further credence to the notion that the U.S. is at risk."

Even TERRORISTS from Central Asia are crossing the border

According to Modernity News, the SOAA's open letter dovetails with reports detailing how the Department of Homeland Security (DHS) has identified over 400 immigrants from Central Asia and elsewhere who gained entry into the U.S. in the past three years as subjects of concern. The migrants were reportedly brought in by a human smuggling network with ties to ISIS.