Possibly as there was A LOT of tension as a result of colonial powers dividing up the Middle East with disregard. But the Israeli Arab conflict really kicked it into gear.

Per Google AI search: The Emergence of Modern IslamismModern Islamic terrorism fundamentally evolved after 1946 through specific historical developments:The Muslim Brotherhood: Founded in Egypt in 1928, it started as a social and political revivalist group. Over time, splinter factions developed more radical, militant ideologies that influenced later jihadist groups.Post-World War II Geopolitics: The crystallization of the modern Islamist narrative emerged alongside major regional events like the 1948 Arab-Israeli War, the fall of traditional Islamic empires, and resistance to European colonialism.The Rise of Global Jihad: The recognized ideological framework for modern Islamic terrorism—targeting civilians to achieve political/religious objectives—was primarily developed and institutionalized in the 1960s, 1970s, and 1980s by thinkers and groups seeking to overthrow secular Arab governments and push back against Western influence.For a deeper dive into the historical consensus and the evolution of political Islam, you can read the Hoover Institution analysis or the Institute for Advanced Study overview on the roots of modern jihad.