evidence: Indonesia is a maritime country with potential natural resources . One is Ambalat Island. Ambalat is a sea block with an area covering 15,235 square kilometers located in the Sulawesi Sea and the Makassar Strait or near the extension of land between Malaysia Sabah and East Kalimantan, Indonesia. One point Ambalat keep mine in the potential reserves 764 million barrels of oil and 1.4 trillion cubic feet of gas . But the problem that occurs is increasingly rapine of natural quarry . Additionally, when Malaysia had initially claimed that Indonesian waters 70 miles from the border Sipadan island beach and Ligitan , Malaysia to expand its territory as far as 2 miles. Thereby reducing area of Indonesia. It happened due to the lack of maintenance of the maritime territory of the Republic of Indonesia (NKRI), especially in border areas like Ambalat Island. Based on this,it is necessary technology innovations especially warship design that could be a solution as alusista ( main instrument of defense systems ) Indonesian Navy in maintaining maritime Homeland.