英和和英

have the initiative

to hold sovereign power―wield the sceptre

to assume the hegemony―gain the ascendancy―maintain one's supremacy

a leadership for something

to wield political power―assume the reins of government―take the reins of government

holding the reins of government

take the helm of state (affairs)

to assume the power―wield the power

rise to power

be in government

to hold real power

hold the balance of power

to hold the destinies of the land in one's hands

to wield military power

come to [into] power

to be able to hold power

to hold the supreme power of the state―wield the sceptre―sway the sceptre

assume [hold, take over] the reins of government

to have the power of the sword―have the right of war and peace

hold hegemony over…

take control of…

have [seize] the initiative

to maintain the mastery of the air

She reigns supreme over the East.

an act of reigning over a country in one's own way

challenge his right to lead