The phrase "a commitment to defending" is correct and usable in written English.
You can use it when discussing a promise or dedication to protect or uphold something, such as rights, values, or principles.
Example: "The organization has made a strong commitment to defending human rights around the world."
Alternatives: "a dedication to protecting" or "a pledge to uphold".
There was a commitment to defend the interests of financial services – with a quid pro quo that there would be no "return to the casino economy".
In faraway Morocco, two Islamist parties, one "loyalist" regarding the monarchy, the other dissident, have made headway against the once dominant socialists and liberals.What unites these groups is not simply a commitment to defend Islamist values.
In my new role as Shadow Culture Secretary, I want to be very clear Labour's starting point will be a commitment to defend the freedom of the free press.
Because the U.S. has a "commitment to defend it [Taiwan] should Beijing carry out an attack," reports the Times.
Secretary of Defense Robert Gates told the Senate Armed Services Committee this month that the agreement "will not contain a commitment to defend Iraq".
It was unclear what actions the U.S. military might take, but Davis stressed a commitment to defend freedom of navigation and protect U.S. forces.
"We continue to make this offer of engagement with respect for your sovereignty and with regard for your interests — but also with an ironclad commitment to defending global security," Mrs. Clinton said at the conference, sponsored by the International Institute for Strategic Studies.
Because the funding for the initiative has been allocated as part of the rather controversial Overseas Contingency Operations fund at the president's request, some have questioned whether Obama is ready to make a long-term commitment to defending members of the NATO alliance.
First, he offered a remarkably tepid statement of commitment to defending Gulf Arab allies.
