This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: removed artifacts primarily in sky area, adjusted exposure slightly. The original can be viewed here: Raising the Flag on Iwo Jima, larger.jpeg: . Modifications made by Bammesk.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
This is a featured picture on the English language Wikipedia (Featured pictures) and is considered one of the finest images. See its nomination here.
If you think this file should be featured on Wikimedia Commons as well, feel free to nominate it.
If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it.
Captions
Historic photo of the raising of the American flag over Iwo Jima, taken by Joe Rosenthal of the Associated Press, February 23