The term for it is "impressment".
Impressment .
To be forced into service
Draft, conscription, or compulsory service.
Already before the start of World War 1 most European countries had compulsory military service.
Yes, there were instances of kidnapping during the American Civil War. Both the Union and Confederate forces engaged in kidnapping and taking prisoners of war. Additionally, there were cases of civilians being kidnapped or forced into military service by both sides.
The law that forced people into military service during the Civil War was the Enrollment Act of 1863, also known as the Civil War military draft. It required all male citizens and immigrants to register for conscription to serve in the Union Army if needed. Those drafted could also pay a commutation fee or provide a substitute to avoid service.
Any member of the US Military serves under the "needs of the service". When the service feels you are unneeded, OUT YOU GO!
Kerry was forced to retract statements he made regarding his military service...
An important restriction was age because knights were forced to be in military service for 40 years or more.
the free peasant suffered during that period because of the military service and the months forced labor
This could be considered child abduction or kidnapping, as well as coercion or duress if the children are being threatened to comply. It is illegal and a serious offense under criminal law.
Conscription is the opposite of voluntary. People are forced by law to serve in the armed forces. From Wikipedia: Conscription is the compulsory enrollment of people to some sort of public service, most often military service.)
A means of raising an army; eligible people are forced to join the armed forces of a country