There are several notable rabbis among the list of signatories who have advocated for the killing of “enemy babies” in the past. Rabbis Yitzhak Shapira and Yosef Elitzur explicitly wrote this in their 2009 book Torat Hamelech (King’s Torah), claiming that such babies can often be in the way of killing the enemy and that their killing is therefore permitted. In addition, they wrote their murder is permitted under the justification that these babies “will grow to harm us.”

https://mondoweiss.net/2023/10/israeli-rabbis-tell-netanyahu-that-israel-has-a-right-to-bomb-al-shifa-hospital-in-gaza/