The Peninei Halachah --which enjoys widespread popularity in Israel & are used in schools and military academies alike-- justifies this "Mitzvah to wipe out Amalek" by referencing Samuel 15:1-3 where God commands the Israelites to "totally destroy all that belongs to [Amalek]" including "men and women, children and infants, cattle and sheep, camels and donkeys."
https://en.m.wikipedia.org/wiki/Eliezer_Melamed
https://ph.yhb.org.il/en/about-2/
https://www.biblegateway.com/passage/?search=1%20Samuel%2015%3A1-3&version=NIV
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.