The phrase "strike a posture" is correct and usable in written English.
This phrase is often used to refer to someone holding a pose or a stance in a certain way, usually in order to make a statement or to convey a particular attitude. For example: When the protestors took to the streets, many of them struck a posture of defiance.
But Iraqi military officials continued to strike a posture of defiance, terming the attacks a "barbaric bombardment" and claiming that they had shot down 21 allied cruise missiles.
And by publishing only a portion of the documents, rather than spilling information willy-nilly and recklessly endangering lives, WikiLeaks could also strike a posture of responsibility, an approach that seems to run counter to Mr. Assange's own core anarchism.
Iran's top nuclear negotiator said Wednesday that he would offer "new initiatives" at the coming talks with world powers on its disputed nuclear energy program, apparently trying to strike a posture of conciliation without specifying which ideas he intended to propose.
And yet I also can't allow myself to grow complacent, given the increasing hate crimes, the assaults on Muslims, the threats to Jewish centers, and the feeling among some that they have the right to strike a posture of supremacy and thuggery against minorities.
But Mr. Rostropovich took matters into his own hands, striking a posture that held the audience in rapt silence for an endless minute.
Senior Iraqi officials struck a posture of defiance today in the face of advancing coalition troops and a night of punishing air attacks on Baghdad that reduced many of Saddam Hussein's most prized palaces and other crucial government buildings to hollowed-out, smoldering wrecks.
She strikes a posture, then with a shout goes through a series of punches and kicks which her students follow.
Still, he tries to strike an optimistic posture, often talking about how Alfonse M. D'Amato catapulted from service as Hempstead town supervisor in 1980 to become a United States Senator, and how George E. Pataki, a onetime little-known state senator, defeated the incumbent governor, Mario M. Cuomo, 10 years ago.
The statement was another sign that the new leadership in the North, whomever its central members might be, was sufficiently in control to strike a typically strident posture toward South Korea.
Trump's rhetoric also exposed the limitations of his attempts to modulate his language to strike a less offensive posture toward women.
The rescue of the Iranians appeared to put the Iranian government in an awkward position as it strikes a defiant posture in the face of new economic sanctions attacking its oil exports.
