Conscription: Like others armies in South America, Chile had had a small army of long-term service officers and soldiers. In 1900 Chile became the first country in Latin America to enforce a system of compulsory military service, whereby training, initially five to eighteen months (Germany: three years), took place in zones of divisional organization in order to create a solid military structure that could be easily doubled with well-trained and combat-ready reserve forces. Budgetary restrictions prevented the full impact of the law: the service fell disproportionately on the lower classes, no more than 20% of the contingent was incorporated annually, and former conscripts were not retrained periodically.