"Sgt. Williams, unfortunately due to prior commitments I will not be able to attend the Ball with you this year but I am sending you a case of Moët and Chandon with gratitude," the actress, 26, wrote in a statement to Zap2it.
"I feel incredibly honored," she continued. "Not only does Sgt. Williams deserve recognition for his bravery, selflessness and dedication to the United States and its people, but also displays a cheeky talent for film making."
"In my absence, I raise a glass to you and all the men and women of the U.S. Marine Corps, past and present, in thanks for your continued commitment to preserving the safety of our nation. – Scarlett"