The controversy regarding stop-loss focuses mainly on the aspect involving "involuntary extension" of a service member's initial active duty service obligation. For service members opposed to involuntary extension, it represents implementation of a desultory clause in their contract which alters their expectation of an end of term of service date. It also exposes them to the risk of an additional or prolonged combat deployment. For opponents of a current armed conflict, the public perception of "involuntary extension" is contrary to the notion of voluntary service and undermines popular support for the conflict.