Judaism & Just War (Edexcel GCSE Religious Studies B): Revision Note

Exam code: 1RB0

Glenn Millington

Last updated

What is a Just War?

  • Religions generally oppose war, but many believe fighting is justifiable if it is the only course of action that will prevent a real evil

  • Within some religious traditions, there are guidelines on the rules for a legitimate war

  • These guidelines are used to influence the decision to go to war and also how it is fought, therefore making the war just or fair

  • The message is clear: sometimes if you do not fight, you allow a greater evil to happen than a war would cause, so you have to fight

Judaism and the Just War theory

  • Judaism generally promotes peace, but it acknowledges that war may sometimes be necessary

  • Jewish teachings on war come from the Torah, Talmud, and rabbinic tradition, outlining conditions for a Just War

  • There are some situations where Jews believe that war is justified

    • Milchemet Mitzvah (Obligatory War) is a war commanded by God, such as wars to defend Israel or fight against Amalek (Deuteronomy 25:17-19)

    • Milchemet Reshut (Optional War) is a war for political reasons, only allowed with approval from the Sanhedrin 

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  • War is permitted if necessary for self-defence, to protect life (Exodus 22:2)

  • Many Jewish scholars support Just War Theory, ensuring wars are fought ethically

  • Judaism teaches that war is a last resort, only justified for defence or divine command

  • It emphasises morality in warfare and the pursuit of peace whenever possible

Different Jewish approaches to Just War

  • In Judaism, war is generally discouraged, but certain wars are considered justifiable under specific conditions

  • There are different approaches to the idea of a Just War in Jewish teachings

    • Milchemet Mitzvah (Obligatory War) is a war commanded by God, such as the Biblical battles fought by the Israelites

      • Many Jews would consider this kind of war to be justified

      • Defending Jewish people from attack is also considered a mitzvah

    • Milchemet Reshut (Permitted War) is a war that is not commanded by God but is allowed under certain conditions

      • This requires approval from Jewish religious leaders and must have a just cause

      • An example of this could be expanding territory for the security of the nation (historically)

    • Self-defence and the Principle of Pikuach Nefesh (saving a life) is a key Jewish principle that justifies self-defence

      • If lives are in danger, war may be necessary to protect people

    • However, some Jews believe that war can never be justified

      • Some are pacifists and would believe that violence should never be used for any reason

      • Some would believe that there are always innocent deaths with modern warfare and so war should always be avoided

Conditions of a Just War in Judaism

  • If a war is to be just or fair then certain conditions of warfare must be adhered to 

    • These conditions are based on Biblical, Talmudic, and later rabbinic interpretations

  • Firstly, the war must have a just cause and be fought for a morally acceptable reason, such as:

  • Self-defenceProtecting the Jewish people from attack

  • Divine command – Wars commanded by God in the Bible (for example, the battles led by Joshua)

  • Preventing oppression – Stopping severe injustice or threats to Jewish survival

  • The war must also be approved by a recognised Jewish authority

  • In Biblical times, this meant a prophet or king

  • In later Jewish teachings, it required approval from the Sanhedrin

  • The war must always only be a last resort

    • War should only be fought if peaceful solutions have failed

    • Efforts should be made to negotiate and avoid conflict

    • Deuteronomy 20:10 says that enemies should be given a chance to surrender

  • It is also important that there is proportionality in the response

    • The response must be appropriate to the threat

    • Excessive force should not be used beyond what is necessary to achieve security

  • The priority must always be the protection of civilians

  • Jewish law teaches that civilians should not be targeted

  • Prisoners should be treated with dignity

  • Finally, the conduct of soldiers during the war must always be moral

    • Soldiers must behave ethically, avoiding unnecessary destruction

    • Jewish law discourages cruelty and unnecessary harm, even in wartime

The view of Situation ethics on Just War

  • Situation ethics, developed by Joseph Fletcher, is a Christian ethical theory that focuses on agape (selfless love) as the guiding principle for making moral decisions

  • Instead of following fixed rules, situation ethics considers what is the most loving action in each situation

  • The idea of having no fixed rules also applies to opinions on war and conflict

    • Situation ethics does not strictly follow traditional Just War Theory

    • Each war must be judged individually based on whether it leads to the most loving outcome

  • Situation ethics would argue that war can be justified if it promotes love

    • If a war prevents greater suffering or protects innocent people, it may be acceptable

    • For example, fighting against a tyrannical regime to save lives

  • The aim for situation ethics is that war should aim for peace and justice

    • War should not be motivated by greed, revenge, or power

    • It should aim to create a better and fairer world

  • Situation ethics would only allow war as a last resort

    • Peaceful solutions should always be tried first

If there is no other way to protect people, war may be necessary

  • Proportionality and civilian protection should always be a priority

    • Violence should be limited to what is necessary

    • Attacking innocent civilians would not be the most loving action and is therefore wrong

Jewish response to Situation ethics view about Just War

  • Situation ethics, developed by Joseph Fletcher, argues that moral decisions, including war, should be based on agape (selfless love) rather than fixed rules

    • Judaism, however, has a more structured approach to war, based on Halakhah

  • In Judaism, the decision to wage war must follow the teachings of the Torah and Talmud, including the principles of Milchemet Mitzvah (Obligatory War) and Milchemet Reshut (Permitted War)

    • In situation ethics decisions should be made based on what is the most loving action in each case, rather than following fixed rules

    • While love and justice are important in Judaism, war must be guided by clear laws, not just individual judgment

  • In Judaism war is only allowed for self-defence or to fulfil a divine command. Peace must always be attempted first

    • In situation ethics a war may be justified if it leads to the most loving outcome, even if it does not fit traditional Just War criteria

    • Judaism agrees that war should be a last resort, but it does not allow for war purely based on emotions or human reasoning

  • Jewish law emphasises not harming civilians and minimising destruction

    • In situation ethics, If harming civilians prevents a greater evil, it could be justified

    • In Judaism, Pikuach Nefesh (saving life) is a core principle, but Judaism generally rejects harming the innocent, even for a greater good

    • In Judaism, moral decisions, including war, should follow God’s commandments rather than personal judgment

      • In situation ethics human reasoning and love should guide decisions, rather than divine rules

      • While compassion and love are important, Jewish ethics must be grounded in God's law rather than flexible moral reasoning

Worked Example

Explain two Jewish beliefs about the Just War theory

(4 marks)

Answer

Judaism teaches that war must always only be a last resort (1 mark) and must only be fought if peaceful solutions have failed (1 mark) 
In war, the priority must always be the protection of civilians (1 mark) and prisoners of war should always be treated with dignity (1 mark)

Examiner Tips and Tricks

There are several ways in which you can prepare to answer questions on this topic

1. Know the key terms

Milchemet Mitzvah – Obligatory war (self-defence, commanded by God)

Milchemet Reshut – Permitted war (war for security, requiring approval)

Pikuach Nefesh – Saving a life, which may justify self-defence

Tikkun Olam – Repairing the world, promoting peace over war

2. Understand key conditions for a Just War in Judaism

War must have a just cause (self-defence, preventing oppression)

It must be declared by a legitimate authority (Sanhedrin in biblical times)

War must be a last resort after peaceful options fail

Proportionality – Force should only be used as needed

Protection of civilians is crucial

3. Use Jewish sources of authority in your answers

Exodus 15:3 – ‘The Lord is a warrior’ (Shows God’s role in war)

Ecclesiastes 3:8 – ‘A time for war and a time for peace’ (War may sometimes be necessary)

Isaiah 2:4 – ‘They shall beat their swords into ploughshares’ (Judaism values peace)

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Glenn Millington

Author: Glenn Millington

Expertise: Religious Studies Content Creator

After graduating with a degree in Theology and Religious Studies, Glenn completed a PGCE over 20 years ago. He later gained an MA in Education Studies from the Manchester Metropolitan University. More recently Glenn completed a PhD in Educational Research focusing on educational disadvantage at Edge Hill University. Glenn is incredibly passionate about developing resources to enable students to succeed in Religious Education.