The phrase "announce his commitment to" is correct and usable in written English.
You can use it when someone is publicly declaring their dedication or promise to a cause, project, or goal.
Example: "During the press conference, the CEO will announce his commitment to sustainability initiatives."
Alternatives: "declare his dedication to" or "proclaim his allegiance to".
He looks both serious and nervous as he reads from a statement to announce his commitment to Arizona.
According to Stern, it is critically important that the US president announce his commitment to limit global temperatures to a rise of no more than 2C.
Mark A. Cuthbertson, a Huntington town councilman, took the opportunity to announce his commitment to make the arts center "a green energy demonstration project," with solar panels and other renewable energy features.
It will take the city three weeks to complete research proving the meat is ground beef; following the clearing of his name, Watt will announce his commitment to veganism.
Henderson announced his commitment to U.S.C. on national signing day, Feb. 3.
Both style and subject announced his commitment to social realism and leftist causes.
Before an assembly of his high school classmates last week, with all the fervor and high dudgeon only a pep rally can conjure, a football player from Nevada announced his commitment to play for the University of California.
Just The Tonic At The Tron, Sat & Sun Moustachioed former doctor and creative stand-up Mike Wozniak begins his latest fringe show by announcing his commitment to the glitzy values of showbusiness.
When President Bush announced his commitment to ending global terrorism, he understood -- I understood, we all understood -- that it was critical to remove the pillars of support for the global terrorist movement.
There was a showbiz feel to Fabian Delph announcing his commitment to Aston Villa directly over the big screen that, no doubt timed to spread a feelgood factor around the ground, was distinctly out of keeping with the majority of the season to date in this corner of the West Midlands.
International students from across the country have been expressing concerns as to whether they are indeed welcome to study in the UK for some time now – a sentiment that has developed since David Cameron announced his commitment to reduce immigration into the UK from hundreds of thousands to tens of thousands in the runup to the 2010 general election.
