LTTE had developed a large international network since the days of N. S. Krishnan, who served as its first international representative. In the late 1970s, TULF parliamentarian and opposition leader A. Amirthalingam provided letters of reference for fundraising, and V. N. Navaratnam, who was an executive committee member of the Inter-Parliamentary Union (IPU), introduced many influential and wealthy Tamils living overseas to Tamil insurgent leaders. Navaratnam also introduced LTTE members to the members of Polisario Front, a national liberation movement in Morocco, at a meeting held in Oslo, Norway. In 1978, during the world tour of Amirthalingam (with London-based Eelam activist S. K. Vaikundavasan), he formed the World Tamil Coordinating Committee (WTCC), which was later found to be an LTTE front organisation. The global contacts of LTTE grew steadily since then. At the height of its power, LTTE had 42 offices worldwide. The international network of LTTE engages in propaganda, fundraising, arms procurement, and shipping.