The main purpose of this resolution is to express the House of Representatives' view that illicit fentanyl and related substances should be classified as weapons of mass destruction. It aims to highlight the severe public health crisis caused by the rise of fentanyl in the United States and to recognize efforts made by former President Trump to combat this issue. Key provisions of the resolution include a call for the President to officially classify synthetic illicit fentanyl-related substances as weapons of mass destruction.