The phrase "assert its power" is correct and usable in written English.
It can be used in contexts where an entity, such as a government, organization, or individual, is demonstrating or claiming authority or control.
Example: "The new policy was designed to assert its power over the industry and establish dominance in the market."
Alternatives: "exercise its authority" or "demonstrate its control".
How can China deal with foreign concerns, especially in Asia and the West, that the country's economic strength will one day encourage it to assert its power aggressively, or even militarily?In the last few months, China has started to develop a riposte.
But amid the ouster of Mnangagwa and the subsequent purge of his allies from government offices, the military decided this week that it would assert its power.
Mr. Thein Sein is becoming someone the administration will look to as it tries to assert its power in Asia to check China's rise.
To give leakers pause, he says, the government should assert its power but not overdo it.
If this is a celebration of love, why don't the protagonists assert its power by rebelling against those intent on thwarting it?
It's also a way for Germany to assert its power, and indirectly send a message to Recep Tayyip Erdogan that he has gone too far in his blackmail on the refugee crisis.
Congress must assert its powers of oversight.
When kindness to the old is condescending, it is aware of itself as benignity while it asserts its power.
Barak, who has always emphasized Israel's dependence on the U.S., was clearly signaling that Akiva Eldar is right: The U.S. is now just taking a different route to asserting its power over Israel, and it's time for the Israelis to submit.
Eisen believes that "it's going to take the judicial branch asserting its power" to limit Trump's international business dealings.
It is the primordial act of a state asserting its power and legitimacy, a spectacle to spark pride in the hearts of a leader's followers and fear in his enemies.
