...[MbS] has assumed a startling array of powers [even before he was elevated to Crown Prince].
He is Defence Minister, a role that in Saudi Arabia gives its incumbent command of one of the world's biggest arms budgets and makes him ultimately responsible for Saudi Arabia's unprecedented military adventure in Yemen.
He also heads the Council for Economic and Development Affairs (CEDA), a group of cabinet ministers who meet weekly and which oversees all elements of policy that touch on the economy or social issues like education, health and housing.
Prince Mohammed chairs the supreme board of Aramco, making him the first member of the ruling family to directly oversee the state oil company, long regarded as the preserve of commoner technocrats.
But perhaps most importantly, he also holds the critical position of gatekeeper to his father, King Salman, who in Saudi Arabia's absolute monarchy retains the final say in any major decision of state.