The Estonian Defence Forces consist of land forces, navy, and air force. The current national military service is compulsory for healthy men between ages of 18 and 28, with conscripts serving 8 or 11-month tours of duty, depending on their education and position provided by the Defence Forces. The peacetime size of the Estonian Defence Forces is about 6,000 persons, with half of those being conscripts. The planned wartime size of the Defence Forces is 60,000 personnel, including 21,000 personnel in high readiness reserve. Since 2015 the Estonian defence budget has been over 2% of GDP, fulfilling its NATO defence spending obligation.