Initially starting out as a guerrilla force, the LTTE increasingly came to resemble that of a conventional fighting force with a well-developed military wing that included a navy, an airborne unit, an intelligence wing, and a specialised suicide attack unit. In particular, India's relationship with the LTTE was complex, as it went from initially supporting the organisation to engaging it in direct combat through the Indian Peace Keeping Force (IPKF), owing to changes in the former's foreign policy during the phase of the conflict. The LTTE gained global notoriety for using women and children in combat and carrying out a number of high-profile assassinations, including former Indian Prime Minister Rajiv Gandhi in 1991 and Sri Lankan President Ranasinghe Premadasa in 1993.