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https://robertsky.com/off-site/2016/07/09/answered-on-quora-why-cant-foreign-ships-bypass-the-strait-of-malacca-and-singapore-port-by-traveling-another-sea-route-strait-of-sunda-and-stop-in-jakarta-instead/
Answered on Quora: Why can't foreign ships bypass the Strait of Malacca and Singapore port by traveling another sea route (Strait of Sunda) and stop in Jakarta instead?