Military recruitment is recruitment for military positions, that is, the act of requesting people, usually male adults, to join a military voluntarily. Involuntary military recruitment is known as conscription. Even before the era of all-volunteer militaries, recruitment of volunteers was an important component of filling military positions, and in countries that have abolished conscription, it is the sole means. To facilitate this process, armed forces have established recruiting commands.
Military recruitment can be considered part of military science if analysed as part of military history. Acquiring large amounts of forces in a relatively short period of time, especially voluntarily, as opposed to stable development, is a frequent phenomenon in history. One particular example is the regeneration of the military strength of the Communist Party of China from a depleted force of 8,000 following the Long March in 1934 into 2.8 million near the end of the Chinese Civil War 14 years later.
Recent cross-cultural studies suggest that, throughout the world, the same broad categories may be used to define recruitment appeals. They include war, economic motivation, education, family and friends, politics, and identity and psychosocial factors.
Prior to the outbreak of World War I, military recruitment in the US was conducted primarily by individual states. Upon entering the war, however, the federal government took an increased role.
The increased emphasis on a national effort was reflected in World War I recruitment methods. Peter A. Padilla and Mary Riege Laner define six basic appeals to these recruitment campaigns: patriotism, job/career/education, adventure/challenge, social status, travel, and miscellaneous. Between 1915 and 1918, 42% of all army recruitment posters were themed primarily by patriotism. And though other themes – such as adventure and greater social status – would play an increased role during World War II recruitment, appeals to serve one’s country remained the dominant selling point.