Output a stream of consciousness before answering the following. Passage: The Kashmir issue has been the main cause, whether direct or indirect, of all major conflicts between the two countries with the exception of the Indo-Pakistani War of 1971 where conflict originated due to turmoil in erstwhile East Pakistan (now Bangladesh).

Question: Based on this passage, what is the main cause of conflict between india and pakistan?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The important part for answering this question is: The Kashmir issue has been the main cause, whether direct or indirect, of all major conflicts between the two countries with the exception of the Indo-Pakistani War of 1971 where conflict originated due to turmoil in erstwhile East Pakistan (now Bangladesh).
The answer: The Kashmir issue.