Answer:
The US involvement in WWII was the Pearl Harbor bombing and then America got involved after that happened and then America bombed Japan twice in Hiroshima and in Nagasaki.
I hope that helps
Germany were the ones who challenged great britain for supremacy of the seas before world war 1 started.
Answer:
Gardner had gained permission to photograph the battle from President Lincoln. The dead in Gardner's photographs were disproportionately Confederate soldiers. This photograph shows deceased Confederate soldiers after the Battle of Antietam.
Explanation: