Answer: increased taxes and borrowing.
Explanation: The U.S. had an isolationist policy when World War I started. It stayed out of the war until several American lives were lost in the war due to attacks by Germany. In January 1927, when Germany sank 7 U.S. ships, the U.S. joined the war.
To finance American involvement in World War, the government issued Liberty Loan Bonds, counting on Americans’ patriotism to help fund the war. The President also encouraged citizens to donate funds to the War. In addition, the administration put a graduated tax in place in a bid to get the rich to fund the war.