Some American legal experts said that according to federal law, American citizens are not allowed to participate in training foreign troops without obtaining a special license from the State Department. At present, the United States has not yet made a clear response as to whether the "instinctive reaction" is supported by the U.S. government.

The "World Today" article on May 16, 2011 said that the "Shadow Army" can certainly play a unique role in some affairs and fields that are controversial or costly and make it inconvenient for the regular army to participate. , but it is precisely because of its "fuzzy characteristics" in the gray area that its actions often trample on the legal and moral bottom lines.

However, it is unclear whether Prince’s help in forming a secret force in the UAE was officially approved by the United States. Under U.S. federal law, U.S. citizens are prohibited from training foreign military forces without authorization from the U.S. Department of State. Legal experts and U.S. government officials believe some Americans involved in the UAE's covert force program may have violated federal law.

Currently, U.S. State Department spokesman Mark Toner could not confirm whether Prince’s company holds a license. But he revealed that the State Department was investigating whether Prince broke U.S. law by helping the UAE train secret forces. Toner also pointed out that last year, "Xe Services" (formerly Blackwater) paid a $42 million fine for "unauthorized provision of security services to foreign customers such as Jordan."

The UAE military stated in a statement on May 15, 2011 that the UAE has always relied heavily on foreign contractors to support the development of its military power. All cooperation between the UAE and contractors All "comply with all international laws and relevant conventions."