Maritime police system is displaying important functions in the big oceanic countries and embodying sovereignty of corresponding sea areas. 海上警察制度在当今世界海洋大国发挥着重要的作用,体现着一个国家对相应海域的主权。
Coastal defense policies and the proper or not, For a country against foreign invasion, to defend the territorial and maritime sovereignty has important strategic significance, therefore, "coastal defense" has become rulers control integral part of the Coastal Policy. 海防政策的恰当与否,对于一个国家抵御外敌入侵、保卫国家领土和海洋主权具有重要的战略意义,所以,海防也成为历代统治者治理海疆政策中不可或缺的一部分。