Complex sentence: During World War II, he re-enlisted in the 82nd Airborne Division "All American Division" where he fought in the Battle of Anzio being awarded a Silver Star and in the D-Day invasion of Normandy receiving a Purple Heart Medal when he was wounded.
Split into simpler sentences: During World War II, he re-enlisted in the 82nd Airborne Division. He fought in the Battle of Anzio where he won a Silver Star and in the D-Day invasion of Normandy where he was wounded.