Both sides agreed to a ceasefire (or 'truce') on 11 July 1921. A ceasefire and Armistice was declared on November 11, 1918. The war escalated into a conflict that lasted until a 2003 peace deal and ceasefire. Sarkozy accused Russia of violating the ceasefire that he brokered. A peace treaty is like a permanent ceasefire. These negotiations led to the IRA ceasefire in August 1994. Both sides accused the other of violating the ceasefire regime. Nevertheless, diplomatic circumstances contributed to the first ceasefire of the war. The conflict ended in a ceasefire in 1987. The war ended following a mutually agreed-upon ceasefire. The war ended with the intervention of a NATO ceasefire monitoring force. Fighting continued and would be followed by several more ceasefire agreements. The second UN-mandated ceasefire halted military action. Meanwhile, a ceasefire until January was agreed. The 2010 Mardakert skirmishes were a series of violations of the Nagorno-Karabakh War ceasefire.