in Copenhagen, 1888. Christmas joined the Danish navy as a
cadet at the age of 14. In 1883, he was appointed as a lieutenant, and the next year he was promoted to the rank of
second lieutenant. In 1885, Christmas was a member of
J.A.D. Jensen's expedition to
Greenland on board the steam gunboat
Fylla. In 1890 he traveled along the
Amazon River with the intention of establishing a Danish shipping route. However, he was unable to find an investor in his project and the route was instead taken over by German shipowners. As a result of his engagement in the conflict, Christmas was discharged from the navy and recalled to Denmark. In his defence, he sent the ministry of the Danish Navy a report containing "some minor criticisms" of their presence in Siam. This report was then widely distributed to the public in a 1893 publication of
Nationaltidende. The report argued that although there had been armed conflict, the Paknam incident did not constitute a war, and thus he had not disobeyed his orders. There is speculation that several other criticisms of the Navy in Siam were also written by Christmas. His book about his experience,
A year in Siam, was published after his return to Denmark in 1894. He rejoined the Danish Navy in 1914 at the rank of
captain. He was again forced to resign in 1916, reportedly because of complications with severe
rheumatism. However, his resignation coincided with the revelation of his collaboration with MI6 while stationed in
Skagen, and is likely the primary reason for his departure from the navy. That same year he was inducted as a member of the Order of the Dannebrog. == Diplomacy ==