On 7 December 1991, another ceasefire was agreed and the JNA force besieging Dubrovnik became largely inactive. In January 1992, the Sarajevo Agreement was signed by representatives of Croatia, the JNA and the UN, and fighting was paused. The United Nations Protection Force (UNPROFOR) was deployed to Croatia to supervise and maintain the agreement. Serbia continued to support the RSK. The conflict largely passed onto entrenched positions and the JNA soon retreated from Croatia into Bosnia and Herzegovina, where a new conflict was anticipated. The only exception was the Dubrovnik area, where the JNA attacked westward from Dubrovačko Primorje, pushing back elements of the HV's 114th and 116th Infantry Brigades and reaching the outskirts of Ston by the beginning of 1992.