Gunfire erupted in the streets of Mandalay, Burma's second largest city, as regime troops raided a building where a cell of the incipient armed resistance movement was sheltering early on June 22. The raid, at Chanmyatharzi township, sparked hours of running street battles. PDF fighters erected barricades of flaming tires to slow the advance of troops. Both the military, known as the Tatmadaw, and the rebel People's Defense Force (PDF [7]) claimed casualties on the opposing side and denied deaths among their own forces. "We've declared war," the Mandalay PDF said in a statement. "The day we've been waiting for is finally here." The PDF has previously targeted Tatmadaw and police patrols in Mandalay. On June 1, a soldier was killed and another injured when the PDF fighters opened fire on military trucks in the city. On June 8, two police officers were shot dead [10]. (Myanmar Now [8], TRT World [11], NYT [12])