The Pakistan Peoples Party (Urdu: پاکستان پیپلز پارٹی‎, commonly referred to as the PPP) is a centre-left, socialist-progressive, and social democratic political party in Pakistan. Affiliated with the Socialist International, its political philosophy and position, in the country's political spectrum, is considered centre-left, involves supporting public ownership, egalitarianism, equality, and strong national defense. Since its foundation in 1967, it had been a major and influential political left-wing force in the country and its party's leadership has been dominated by the members of the Bhutto-Zardari family. Its centre of power lies in the southern province of Sindh.