Jaffna Fort

 This is a fort built by the Portuguese at Jaffna, Sri Lanka in 1618 under Phillippe de Oliveira following the Portuguese invasion of Jaffna. The fort is located near Karaiyur. It was captured by the Dutch under Rijcklof van Goens in 1658 who expanded it. In 1795, it was taken over by the British and remained under the control of a British garrison till 1948. As the only large military fort in the country, due to the presence of only government and military buildings within its ramparts, it was garrisoned by a detachment of the Ceylon Army.