The 1592 War between Japan and Korea also provided Westerners with a rare opportunity to visit Korea. Under orders of Gomaz, the Jesuit Gregorious de Cespedes arrived in Korea with a Japanese monk for the purposes of ministering to the Japanese troops. He stayed there for approximately 18 months, until April or May 1595, thus being on record as the first European missionary to visit the Korean peninsula but was unable to make any inroads. The 'Annual Letters of Japan' made a substantial contribution to the introduction of Korea to Europe, Francis Xavier having crossed paths with Korean envoys dispatched to Japan during 1550 and 1551.