Dagan Moshe Wertman was born in 1977in Jerusalem to Eliyahu and Devorah. Debbie, an American citizen was born shortly after the aliyah of her parents Prof. Hillel and Syril z'l Blondheim in 1951.
Dagan studied at the yeshiva high school of the Mercaz Harav Yeshiva, at Yeshivat Hesder Or Etzion and for 6 years at the Har Hamor Yeshiva. Dagan was drafted into the Golani Brigade and steadily advanced to the rank of Major. At the end of 2008 he took leave for what was to be two years of additional study at the Yeshiva.
With the outbreak of Operation Cast Lead, Dagan returned to his unit. On January 5, 2009, he and two fellow officers were killed in Gaza during clashes with Hamas as a result of two misdirected IDF tank shells.
Dagan is survived by his parents, 4 siblings and his grandfather.