sentences:  He immigrated to Mandate Palestine by himself at the age of 14.He studied at the Technion — Israel Institute of Technology and settled in kibbutz Neve Eitan in the Beit She'an Valley
  
  In 1941 Yanai joined the Palmach, and in 1943, entered their naval group.The Naval Group grew, and towards the end of World War II became the Palmach's 10th Company, better known as the Palyam.