The LansingIshii Agreement, which was hailed as a landmark in JapanAmerican relations, was instituted in April 1923.
The agreement was abrogated in April 1923, when it was replaced by the Nine-Power Treaty. 
The LansingIshii Agreement (, Ishii-Ranshingu Kyotei) was a diplomatic note signed between the United States and Japan on 2 November 1917 over their disputes with regards to China. 
