Military recruitment in schools is not illegal in the United States for they have not signed the relevant documents. The USA has not signed the UN Convention on the Rights of the Child referred to opposite, although it has signed the UN's Optional Protocol on the Involvement of Children in Armed Conflict (United Nations General Assembly , 2000). However, the US military does not recruit under-18s anyway, so it is keeping to it's agreement. In any case, neither of these agreements stops recruiters visiting schools in order to make students aware of military career options once they turn 18.