There are 3000 IDF orphans – children of a parent killed whilst serving in the IDF or Israeli police.  The non-profit organization IDF Widows and Orphans is present at important junctions in their lives. They make sure they have a great celebration of their bat/bar mitzva.

http://jewishnews.timesofisrael.com/how-idf-orphans-celebrate-their-bar-and-batmitzvahs/