The BATTLE of LAKE of ERIE, war of 1812
Hitler invaded Poland on September 1st, 1939
One way in which Americans developed a unique cultural identity after the Revolution was by ratifying the Constitution, which created a true "nation" as opposed to a lose confederation of states, which allowed people to develop a sense of nationalism and "pride" in their country.
Long distance travel and military. I'm not fully sure though.
Answer:
The first russian secret police were called the Cheka
Explanation: