QUETTA: Chief of Army Staff General Raheel Sharif arrived Quetta today on a two day official visit. Commander Southern Command Lt Gen Nasser Khan Janjua received COAS on arrival here. Later, COAS visited Headquarters Southern Command, where he was given detailed briefing on prevalent security situation in Balochistan. Progress on the ongoing earthquake relief work in district Awaran was also discussed. COAS was also briefed about various development and education projects being undertaken by the Army.