Second, it was then that Japan underwent a period of intense Westernization in order to compete with other developed countries. Initially, architects and styles from abroad were imported to Japan, but gradually the country taught its own architects and began to express its own style. Architects returning from study with Western architects introduced the International Style of modernism into Japan. However, it was not until after the Second World War that Japanese architects made an impression on the international scene, firstly with the work of architects like Kenzo Tange and then with theoretical movements, like Metabolism.