Japan invaded Manchuria in 1931, which marked the beginning of its aggressive expansion in Asia prior to World War II.
One Piece, created by Eiichiro Oda in 1997, is a popular manga and anime series that follows the adventures of a group of pirates as they search for the ultimate treasure.
Kendo, a martial art that uses bamboo swords and protective armor, is a popular sport in Japan and is often taught in schools.
