Question: In the Land of the Head Hunters and The Emperor's Naked Army Marches On, are a type of what?
Context: The Sands of Ammon (original title: Le Sabbie di Amon) is the second part of Valerio Massimo Manfredi's Alexander trilogy, following on from "Child of a Dream".  Continuing the epic story of Alexander the Great, "The Sands of Ammon" narrates of the Macedonian king's quest to conquer Asia.  He and his men storm and conquer Persian towns and harbours; even the legendary town of Halicarnassus is defeated.  Alexander's army marches on to the snow-covered Anatolia, where it records yet another few victories.  Despite defeating the king Darius III, the city of Tyre and the Towers of Gaza prove to be formidable enemies, although they ultimately have to surrender to Alexander.  The Macedonian army then heads south towards the mysterious and epic land of Egypt; and it's here, in the sands of the endless Libyan Desert, that the Oracle of Ammon lies.  And what the divine Oracle will reveal to Alexander will change his life forever. Chinese Destinies (1933) is a collection of essays about China and Chinese lives by Agnes Smedley, a left-wing journalist.  Along with another book called "China's Red Army Marches", it was covertly circulated in Guomindang-ruled China, both in English and in Chinese translations. China's Red Army Marches (1934), by Agnes Smedley, also published in the USSR as "Red Flood Over China". Kazuo Hara (原一男 , Hara Kazuo ) is a Japanese documentary film director.  He won the award for Best Director at the 12th Hochi Film Award and at the 9th Yokohama Film Festival for "The Emperor's Naked Army Marches On".  That film also earned him the Directors Guild of Japan New Directors Award. Head Hunters is the twelfth studio album by the American pianist and composer Herbie Hancock, released October 13, 1973, on Columbia Records.  Recording sessions for the album took place during evening at Wally Heider Studios and Different Fur Trading Co. in San Francisco, California.  "Head Hunters" is a key release in Hancock's career and a defining moment in the genre of jazz.  In 2003, the album was ranked number 498 in the book version of "Rolling Stone" magazine's list of the 500 greatest albums of all time.  In 2007, the Library of Congress added it to the National Recording Registry, which collects "culturally, historically or aesthetically important" sound recordings from the 20th century. Thrust is a jazz-funk album by Herbie Hancock, released in September 6, 1974 on Columbia Records.  It served as a follow-up to Hancock's album, "Head Hunters" (1973), and achieved similar commercial success, as the album reached as high as number 13 on the "Billboard" Hot 200 listing.  The lineup for "Thrust" is the same as on "Head Hunters", except Mike Clark replaced Harvey Mason on drums.  This is Hancock's thirteenth album overall. Market hunters, or commercial hunters, hunt wild land animals.  (Their counterparts at sea are called commercial fishermen and whalers.)  They are distinguished from subsistence hunters and recreational hunters by their use of the animals they kill: Market hunters sell or trade the flesh, bones, and/or skins and feathers of slain animals as a source of income; subsistence hunters and their families and local tribes use these materials directly as food, clothing, tools, and/or shelter; recreational hunters often consume the flesh of their kills and/or use the skins for decoration or clothing. The Emperor's Naked Army Marches On (ゆきゆきて、神軍 , Yuki Yukite Shingun ) is a 1987 Japanese war documentary film by director Kazuo Hara, whose title is loosely based on the classical tale The Emperor's New Clothes.  The documentary centers on Kenzo Okuzaki, a 62-year-old veteran of Japan's campaign in New Guinea in the Second World War, and follows him around as he searches out those responsible for the unexplained deaths of two soldiers in his old unit. In the Land of the Head Hunters (also called In the Land of the War Canoes) is a 1914 silent film fictionalizing the world of the Kwakwaka'wakw peoples of the Queen Charlotte Strait region of the Central Coast of British Columbia, Canada, written and directed by Edward S. Curtis and acted entirely by Kwakwaka'wakw native people. The Commemorative Medals for Army Marches are two distinct medals awarded for participating in the two marches organised yearly by the Belgian Army.  They are not decorations, but they may be worn by members of the Belgian Armed Forces on their uniform during the year following the participation if they request it.  For members of the Belgian Army, participating in the marches counts as operational training.
Answer: film