 Complete the following phrase:  Public opinion was even more hostile to Japan, and there was little opposition to increased support for China. After the 1931 Japanese invasion of Manchuria, the United States articulated the Stimson Doctrine, named for Secretary of State Henry L. Stimson, stating that no territory conquered by military force would be recognized. The United States also withdrew from the Washington Naval Treaty limiting naval tonnage in response to Japans violations of the Nine-Power Treaty and the KelloggBriand Pact. Public opposition to Japanese expansionism in Asia had mounted during the Second Sino-Japanese War when the Imperial Japanese Army Air Service attacked and sank the US Yangtze Patrol gunboat in the Yangtze River while the ship was evacuating civilians from the Nanjing Massacre. Although the US government accepted Japanese official apologies and indemnities for the incident, it resulted in increasing trade restrictions against Japan and corresponding increases US credit and aid to China. After the United States abrogated the 1911 Treaty of Commerce and Navigation with Japan, Japan ratified the Tripartite Pact and embarked on an 