Passage: In 1918, Japan continued to extend its influence and privileges in China via the Nishihara Loans. Following the Bolshevik Revolution in Russia, Japan and the United States sent forces to Siberia in 1918 to bolster the armies of the White movement leader Admiral Alexander Kolchak against the Bolshevik Red Army. In this Siberian Intervention, the Imperial Japanese Army initially planned to send more than 70,000 troops to occupy Siberia as far west as Lake Baikal. The plan was scaled back considerably due to opposition from the United States.Toward the end of the war, Japan increasingly filled orders for needed war material for its European allies. The wartime boom helped to diversify the country's industry, increase its exports, and transform Japan from a debtor to a creditor nation for the first time. Exports quadrupled from 1913 to 1918. The massive capital influx into Japan and the subsequent industrial boom led to rapid inflation. In August 1918, rice riots caused by this inflation erupted in towns and cities throughout Japan.

Question: Which country's influence resulted in the Imperial Japanese Army scaling back a plan to occupy Siberia after the Bolshevik Revolution?
United States