Masa Bersiap (The Alert Period) was the post Proclamation of Indonesian Independence period: august 1945 – January 1946. This sort period of alertness was very critically and decision, it was describe as a very disordered time, laden with numerous acts of violent, looting, even massacres. Bogor is one of example that reflected this situation. Ki Nariya who was known as jawara from Leuwiliang, Bogor, had tried to seized the power. He tried to capture all the official government at this residency. Ki Nariya’s and followers nearly were acknowledged by the government of the Republic of Indonesia in Jakarta who did received little information the social development around the Jakarta – Bogor area, and had nearly acknowledged his leadership. But after a report was obtained from Bogor, the leaders in Jakarta gave instruction to the TKR to immediately take strong action against the Ki Nariya movement. After obtaining that instruction, one combined groups of the Bogor regiment were successful to surround and intercept Ki Nariya cs in Dermaga.