By Fabian Hamacher PINGTUNG, Taiwan (Reuters) – Taiwan’s air force showed off its armed-to-the-teeth submarine hunters and early warning and control aircraft on Tuesday, demonstrating how it keeps watch on the skies and waters around the Chinese-claimed island. China, which views Taiwan as its own territory, has over the past four years regularly sent warplanes and warships into the skies and waters around the island as it seeks to assert sovereignty claims that the government in Taipei rejects. Taiwan’s air force, dwarfed by China’s but well-armed with mostly U.S. equipment, has been at the f…