Which Southeast Asian country has the world's second-longest coastline?

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https://e.vnexpress.net/news/news/brainteaser/which-southeast-asian-country-has-the-world-s-second-longest-coastline-5086446.html">https://vcdn1-english.vnecdn.net/2026/06/17/KGVCHYIYIRIGVJZVVVQKFCAKKI-178-4666-6452-1781681663.jpg?w=900&h=0&q=100&dpr=1&fit=crop&s=9fGB5x9uAx-R8ZVmoKreTA" />Lying between two oceans, this Southeast Asian nation has one of the longest coastlines in the world.

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