Definition of holy war
: a war or violent campaign waged often by religious extremists for what is considered to be a holy purpose
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“Holy war.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/holy%20war. Accessed 5 Jul. 2022.
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Time Traveler for holy war
The first known use of holy war was in 1639
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