If you have been looking for a tortured analogy that explains the difference between lobbying and public relations, NPR has come to your rescue: lobbyists are the Army soldiers storming Normandy, while PR people are the Air Force.
NPR’s Guide to Lobbying & PR
Denver Public Relations Blog 
Sadly, it’s the PR person who came up with the D-Day analogy.
Far be it for me to second guess the NPR story but the Navy played a very key role in D-Day, getting the troops to the beaches and conducting the most effective pre-invasion bombardments.
The Air Force also dropped the first wave of airborne troops behind enemy lines in the early hours of D-Day.
So who in the analogy would be the “Band of Brothers?”
Flame away dear friends.