Final answer:
WWP is using a marketing or advertising strategy to raise awareness and attract support for their cause by telling the stories of wounded veterans.
Step-by-step explanation:
The strategy being used by Wounded Warrior Project is marketing or advertising strategy.
By spending a lot of money on celebrity involvement and advertising, WWP has become the most well-known nonprofit helping veterans, making use of the power of storytelling to raise awareness and attract support.
This strategy helps WWP stand out among other nonprofits and effectively communicate their mission and impact to a wider audience.