During his time on the kibbutz, he took part in a pre-military preparatory program. When Ben enlisted in the IDF as a lone soldier – he chose to be a combat medic in the Paratroopers Brigade, so he could care for those in need of help.
Ben's care for others compelled him to check in with those he loved to make sure they were okay, and this sensitivity was evident even on the morning of Simchat Torah. Ben was celebrating with friends at the Nova festival near Kibbutz Re'im when Hamas terrorists infiltrated the party. Ben immediately switched into ‘medic-mode’ as he ran towards a nearby ambulance, broke the window to retrieve a first aid kit so that he could treat the wounded – putting his own life in danger. Later, he and his friend assisted in evacuating the bodies of the victims until they themselves were also shot and killed. "Ben was killed because he decided not to flee the party, but to help other people," his family said about him.