Answer:
The colonies suffered badly during the Depression of the 1930s. The imperialist European countries had encouraged their colonies to produce raw materials for European factories.
The influenza was a strain that people had no immunity.
On this day in 1914, as World War I erupted across Europe, President Woodrow Wilson declared that the United States would remain “impartial in thought as well as in action.” ... In February 1915, Germany declared unrestricted warfare against all ships, neutral or not, that entered the war zone around Britain.
What do you mean colonies? You mean the 13 colonies?