This is a political cartoon, courtesy of Portland, Oregon's "Evening Telegram." The words "The Key to Victory" are displayed at the bottom and an image of a key with the word ships on it is about to unlock a door labeled victory, suggesting that ships will be the key to victory in Europe.
I’m not too sure what the man represent, it might represent (for example) the British, the French, etc …
It is the reasoning why the American colonies are leaving the British Empire. It is important because it was the basis for starting the American Revolution and attempting to become a separate nation out of British control.
