What is the definition of a war crime?

It’s like if you get 20-to-life for drug possession, except instead of drug possession it’s repeatedly brutalizing, starving, and killing civilians, and instead of 20-to-life, there’s no punishment.

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I’m not sure, but I don’t think they have anything to do with what America did in the Philippines between 1899 and 1906; in Haiti between 1915 and 1934; in Japan during World War II; in Korea between 1950 and 1953; in Guatemala in 1954; in Vietnam, Laos, and Cambodia between 1960 and 1972; in Cuba in 1961; in Indonesia in the 1960s; in Chile in 1973; in East Timor in 1975; in El Salvador and Nicaragua in the 1980s; in the Persian Gulf in the early 1990s; in Serbia in 1999; in Afghanistan...
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in Afghanistan between 2001 and 2021; in Iraq between 2003 and 2007; in Somalia, Libya, and Yemen in the 2010s; and what’s happening in Guantánamo Bay right now.”
What is the definition of a war crime?
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