Tintin au pays de l'or noir
During this period, Hergé also contributed to "L'Ouest" ("The West"), a newspaper run by his friend Raymond de Becker. "L'Ouest" urged Belgium to remain neutral in World War II, a stance Hergé supported, creating the "Mr Bellum" strip to argue this position. Hergé was invited to visit China by Chinese Nationalist leader Chiang Kai-shek, who had enjoyed "The Blue Lotus", although due to the political situation in Europe, this was not possible. He was re-mobilized in December, and stationed in Antwerp, from where he continued to send the Tintin strip to "Le Petit Vingtième". However, he fell ill with sinusitis and boils and was declared unfit for military service in May 1940. That same day, Germany invaded Belgium. "Le Vingtième Siècle" was shut down, part way through the serialisation of "Land of Black Gold".