In November 1908, Haushofer was ordered to Tokyo as a military attache to study the Imperial Japanese Army and as a military advisor in artillery instruction. He travelled with his wife via India and South East Asia and arrived in February 1909. He was received by Emperor Meiji and became acquainted with many important people in politics and the armed forces. In autumn 1909, he travelled with his wife for a month to Korea and Manchuria on the occasion of a railway construction.
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He established himself as one of Germany’s foremost experts regarding the Far East, and co-founded the geopolitical monthly Zeitschrift für Geopolitik (ZfG), which he would co-edit until it was suspended towards the end of World War II.