How do the Japanese prepare for the U.S. attack on Iwo Jima?

Defense planning In order to prevent disclosing their positions to the Americans, Japanese artillery was to remain silent during the expected prelanding bombardment. No fire would be directed against the American naval vessels. Upon landing on Iwo Jima, the Americans were not to encounter any opposition on the beaches.

‎Japanese planning · ‎Caves, bunkers and... · ‎Defense planning · ‎Lines of defense.

In layman's term, flash-forward is when events sequences in a story are interrupted by the insertion of an event that will happen in the future.I think one way it affects the plot is that the reader or viewer are seeing an event that will happen in the future. Typically authors don't allow the readers to do that because they want to add suspense but I think having flash-forward in a way can create suspense as well. Readers get a glimpses of what's going to happen but they aren't sure exactly when those events will come to play