Answer:
Railroads improved the movement of people from one area to the other
Observation balloons gathered information about the enemy and communicated it back to the officers
Explanation:
i took the test.
Mayor Daley deployed thousands of police officers to restrain the protesters.
When the Democratic National Convention met in Chicago in 1968, thousands of protesters staged demonstrations against the US involvement in the Vietnam War. Chicago's mayor, Richard Daley, sent out 12,000 local police officers against the protesters and called in thousands more state and federal officers. The situation became a major riot between protesters and police that came to be known as "The Battle of Michigan Avenue."
Answer:
Germany resumed unrestricted submarine warfare in 1917, because it wanted to starve Britain into making peace.
Europeans are trying to change from socialism to Capitalism
