The phrase "asserting mastery" is correct and usable in written English.
It can be used in contexts where someone is demonstrating control, expertise, or dominance over a subject or situation.
Example: "In the meeting, she was asserting mastery over the project details, impressing everyone with her knowledge."
Alternatives: "demonstrating control" or "exhibiting dominance".
And because its purpose is asserting mastery of the sea over a collection of far weaker neighbours to the south, much of this rising force will call Hainan its home.
We have a lot more work ahead of us". Thrust in the spotlight by Gustav, Jindal, 37, a political whiz kid in office for all of eight months, is asserting mastery over his state's response to the natural disaster -- just the sort that can have serious consequences for politicians.
The importance of destroying enemy air defenses and establishing supremacy in the air in order to assert mastery on the ground was reinforced during the Operation Desert Storm air offensive of the Persian Gulf War (1990 91).
If, as Samuel Weber said, "the pursuit of meaning; the activity of construction, synthesis, unification... all this indicates the struggle of the ego to establish and maintain an identity", then what better way, when facing the dissolution of the ego, to assert mastery than for the ego to dissolve itself by following to the ultimate the philosophy from which it derived meaning?
Nevertheless, Juba's imitations of his white rivals asserted his greater mastery of the styles then current in Blackface dance.
Within a dozen years humans were playing golf on the moon, nonchalantly asserting our mastery over the universe.
But where Webern reveled in blossoming potential, the Quartettsatz asserts a mastery achieved.
Confrontations between the powerless and powerful are laden with deception the powerless feign deference and the powerful subtly assert their mastery.
Mitko turned back at once, as docile as if our transaction had already taken place; maybe in his mind it was already a sure thing, as it was in mine, though I pretended to be skeptical of the goods on offer, trying to assert some mastery over the overwhelming excitement I felt.
In a black shirt and gray pants, his dreadlocks tied back, Glover's rangy body responds to Coltrane's music, plays with it, allowing it to sweep him along but also asserting his own mastery.
But to assert man's mastery of the air by flying over the roof of the world must make its strong appeal to everyone's imagination, none the less.
