Taipei (traitional Chinese: 臺北市 or 台北市; simplified Chinese: 台北市; Hanyu Pinyin: Táiběi Shì; Tongyong Pinyin: Táiběi Shìh, Taiwanese Pe̍h-ōe-jī: Tâi-pak-chhī; Zhuyin Fuhao: ㄊㄞˊ ㄅㄟˇ ㄕˋ) has been the capital of the Republic of China (ROC) on Taiwan since 1949 and is the largest city in Taiwan. It is situated on the Danshui (Danshuei) River, almost at the northern tip of the country, about 25 km southwest of Keelung, which is its port on the Pacific Ocean. Another coastal city, Danshui, is about 20 km northwest at the river's mouth on the Taiwan Strait.