This study, Why Vietnam Invaded by Jitendra Mohan, dismantles the myth that Vietnam’s occupation of Kampuchea was a humanitarian intervention. Instead, it reveals Hanoi’s broader strategy of enforcing an ‘Indochina bloc’ under Vietnamese hegemony, with Kampuchea serving as an agricultural hinterland for Vietnam’s industrial ambitions. The text demonstrates how Vietnam’s economic crisis, with food shortages reaching 4.3 million tons in 1978, compelled it to seek Soviet support and wage war to consolidate regional control. By detailing the invasion’s premeditation—military build-up, diplomatic maneuvers, and economic integration schemes—Mohan exposes Vietnam’s expansionist motives, challenging the notion that its aggression was merely a reaction to external threats.