You can learn a lot about country’s political structure by how their soldiers yell at you.
Consider how a Queen’s Guard reprimands a tourist in the U.K.:
“Get off the fence!”
Now compare how a U.S. Marine corrects a tourist at the Tomb of the Unknown Soldier:
“Sir, it is requested you remain off the plaza at all times!”
American soldiers are not always courteous, but the communication styles seen above are representative examples of the decorum expected for each. This reflects something of the political relationship between soldiers and citizens in these countries.
In the United Kingdom, citizens are the monarch’s subjects; therefore the queen’s soldier reprimands citizens like inferiors. (“Get off…”) But in the United States, the soldier serves under the authority of a civilian in the person of the President, the Commander in Chief. The U.S. soldier is a citizen’s servant; therefore a U.S. Marine corrects citizens with respect, as peers. (“Sir, it is requested…”)