Paul Calle (American, 1928 - 2010) and Chris Calle (American, B. 1961) "1930's - Japanese Aggression Arouses World" Signed lower right. Mixed Media on Illustration Board. Provenance: Collection of James A. Helzer (1946-2008), Founder of Unicover Corporation.This painting originally appeared on the Republic of the Marshall Islands The 20th Century series 60? Japanese Aggression Arouses World Opinion stamp issued July 15, 1998. In 1931 the world watched with great concern as Japan, eager to expand its empire, invaded and conquered Manchuria -- China's main industrial center. Despite international criticism and sanctions, Japan continued its ruthless quest for new territories throughout the decade. On July 7, 1937, Japanese forces attacked Chinese units near Beijing eventually capturing the cities of Nanjing, Shanghai, Hangzhou and Guangzhou. Nanjing fell on December 13, 1937. Over the next six weeks, soldiers of Japan's Imperial Army committed the infamous "Rape of Nanjing," one of history's worst atrocities, during which an estimated 300,000 Chinese soldiers and civilians were killed -- and some 20,000 women raped. The once beautiful city of Nanjing was also burned and pillaged. Image Size: 10 x 13.5 in. Overall Size: 13.25 x 19.75 in. Unframed. (B16078 / B16079)