The United States Navy places significant emphasis on the development of its mine countermeasures（MCM） capability system. After the Gulf War，it initiated a series of research initiatives addressing the challenges of beach and surf zone obstacles. This paper provides a background overview of the U.S. Navy's reassessment of amphibious MCM capabilities，along with the arrangement of several research programs focused on beach and surf zone obstacle challenges. It also examines and analyzes two representative sub-projects of the U.S. Navy's Assault Breaching System，including key supporting technologies such as UAV-borne optical mine detection，precision-guided munitions，and missile-delivered cluster darts. The paper summarizes the main characteristics of the U.S. Navy's exploration and solution to the challenges of beach and surf zone obstacles over more than three decades and proposes a suggestion of systematic development of three-dimensional and full-sea-depth MCM capability.
