Conversation so far:
when was the flag raised on iwo jima
On February 23, 1945, during the battle for Iwo Jima, U.S. Marines raised a flag atop Mount Suribachi.
who took the photograph titled raising the flag on iwo jima
Raising the Flag on Iwo Jima is a black and white photograph taken by Joe Rosenthal

Question: how long did the battle last
Self-contained rewrite: how long did the battle of iwo jima last