Aarne Edward Juutilainen (Finnish: [ˈɑːrne ˈjuːtilɑi̯nen]; 18 October 1904 – 28 October 1976), nicknamed "Marokon kauhu" (English: The Terror of Morocco), was a Finnish army captain who served in the French Foreign Legion in Morocco between 1930 and 1935.

He had to drop out of school due to unsuitable lifestyles for the active officer[5] and resigned from the Finnish Army in 1928.

He spent time in a Foreign Legion training camp in the town of Sidi Bel Abbès.

[8] He returned to Finland on 20 June 1935, by which time the southern part of Morocco was under French protectorate.

"Unless we are told to run" meant exactly that; a week earlier, he had received a regimental order to withdraw, which he disregarded.

A contemporary news report described the unit as having achieved "startling victories in this sector" during the war.

He used the guerilla warfare skills he learned with the French Foreign Legion to train his men.

[9] The 6th Company of Infantry Regiment 34, a unit led by Lieutenant Juutilainen, also included the legendary military sniper Simo Häyhä, known as the "White Death.

[10] After the fiercest battles of the Continuation War in Gora in 1942, Juutilainen was transferred to the command of the JR 9 garrison, a position he served in during the period of trench warfare from 1942 to 1944.

After that, before returning to the field army, Juutilainen served from May 1944 as commander of the 31st Prisoner of War Company.

The transfer to that unit was due to "continued drunkenness and the beating of a man under his command in April 1944", according to the Punishment Diary of 7th Division officers; as he served as commandant of the division's headquarters, action and excitement were replaced by alcohol that was consumed in considerable quantities.

[2] As the captain of the Lapland War, Aarne Juutilainen took part in the early stages of monitoring the retreat of the German XX Mountain Army together with his regiment, from which the reservists had already been repatriated.

[12][13] Juutilainen appears in the 2024 novel Les Guerriers de l'hiver by Olivier Norek, which is set during the Winter War.

According to Norek, his grandfather and Juutilainen served at the same time in the French Foreign Legion in Morocco in the 1930s.