[3][4] While the biblical narrative about the conquest of Canaan and the commands related to it have had a deep influence on Western culture,[5] mainstream Jewish traditions throughout history have treated these texts as purely historical or highly conditioned, and in either case not relevant to contemporary life.
[7][8] Contemporary warfare conducted by the State of Israel is governed by Israeli law and regulation, which includes a purity of arms code that is based in part on Jewish tradition.
[18] The Talmud insists that before going to non-defensive war, the king would need to seek authorization from the Sanhedrin, as well as divine approval through the High Priest.
[32] A formal declaration that the “seven nations” are no longer identifiable was made by Joshua ben Hananiah, around the year 100 CE, making laws of exterminating war a dead letter.
[19][33] Maimonides explained that the commandment of destroying the nation of Amalek requires the Jewish people to peacefully request of them to accept upon themselves the Noachide laws.
[34] Some commentators, such as Rabbi Hayim Palaggi (1788–1869) argued that Jews had lost the tradition of distinguishing Amalekites from other people, and therefore the commandment of killing them could never practically be applied.
[6][36] Scholar Carl Ehrlich states the biblical rules of extermination provide guidance to modern Israelis not for genocidal purposes, but rather simply as models for reclaiming the land of Israel.
[48] Niels Peter Lemche asserts that European colonialism in the 19th century was ideologically based on the Old Testament narratives of conquest and extermination and that some radical Zionist groups have brought the same idea to bear in Israel.
[53] According to Rabbi Judah Loew (Maharal) of Prague, Jewish law forbids the killing of innocent people, even in the course of a legitimate military engagement.
[57] However, major and mainstream religious leaders have condemned this interpretation, and the Israeli military subscribes to the purity of arms doctrine, which seeks to minimize injuries to non-combatants; furthermore, the advice was only applicable to combat operations in wartime.
[55] During the 2006 Lebanon War leaders of the Rabbinical Council of America issued a statement prodding the Israeli military to "review its policy of taking pains to spare the lives of innocent civilians", because Hezbollah “puts Israeli men and women at extraordinary risk of life and limb through unconscionably using their own civilians, hospitals, ambulances, mosques… as human shields, cannon fodder, and weapons of asymmetric warfare,” the rabbinical council said in a statement, “we believe that Judaism would neither require nor permit a Jewish soldier to sacrifice himself in order to save deliberately endangered enemy civilians.”[57] In another case, a booklet published by an IDF military chaplain stated "... insofar as the killing of civilians is performed against the background of war, one should not, according to religious law, trust a Gentile 'The best of the Gentiles you should kill'...".
[59] Activist Noam Chomsky claims that leaders of Judaism in Israel play a role in sanctioning military operations: "[Israel's Supreme Rabbinical Council] gave their endorsement to the 1982 invasion of Lebanon, declaring that it conformed to the Halachi (religious) law and that participation in the war 'in all its aspects' is a religious duty.
'"[60] In 2007, Mordechai Eliyahu, the former Sephardi Chief Rabbi of Israel wrote that "there was absolutely no moral prohibition against the indiscriminate killing of civilians during a potential massive military offensive on Gaza aimed at stopping the rocket launchings".
[62] Later, Friedman explained: "the sub-question I chose to address instead is: how should we act in time of war, when our neighbors attack us, using their women, children and religious holy places as shields.
"[63] "Despite the long regnant model that the Canaanites and Israelites were people of fundamentally different culture, archaeological data now casts doubt on this view.
The material culture of the region exhibits numerous common points between Israelites and Canaanites in the Iron I period (c. 1200–1000 BCE).