What was the purpose of Japan invading China in the 1930s?

During the 1930s Japan posed a serious threat to British interests in China. In September 1931 the Japanese invaded the Chinese province of Manchuria and established Manchukuo as a puppet state. Full-scale war broke out after a Japanese attack on the Marco Polo Bridge near Beijing, which only ended in July 1937.

The case was a u.s. supreme court decision that defined the scope of the u.s. congress's legislative power and how it relates to the powers of american state legislatures. the dispute in mcculloch involved the legality of the national bank and a tax that the state of maryland imposed on it.