A bottle is broken against the hull of Haikun, Taiwan's first domestically built submarine, as President Tsai Ing-wen attends the submarine's launching ceremony in Kaohsiung, Taiwan September 28, 2023. REUTERS/Carlos Garcia Rawlins Acquire Licensing Rights KAOHSIUNG, Taiwan, Sept 28 (Reuters) - Taiwan unveiled its first domestically developed submarine on Thursday, a major step in a project aimed at strengthening the island's defence and deterrence against the Chinese navy, though it won't enter service for another two years. Taiwan, which China claims as its own territory, has made the indigenous submarine program a key part of an ambitious project to modernise...