Prime Minister Benjamin Netanyahu's oldest son has begun his mandatory three-year military service.

Netanyahu accompanied his son Yair to a military induction center in Jerusalem Tuesday to see him off.

The 18-year-old Yair boarded a bus to another army base where he will be processed. He will then go through three weeks of basic training before joining the military spokesman's office.

Yair will be the army's only private with a personal bodyguard.

Netanyahu himself was an officer in an elite Israeli commando unit. The prime minister has another son, Avner, with his wife Sara and an older daughter, Noa, from a previous marriage.

All Israelis are required to start military service at age 18. Men serve for three years, women for two.