Iranian soil. Heat-seeking SA-7 missiles were given by Iran to prevent Turkish operations in Iraq. Organization used SA-7 missiles effectively against Turkey during Turkey's involvement in Iraqi Kurdish Civil War. During the 1990s, Greece and Iran were accused of providing PKK with supplies in the form of weapons and funds. Both Greece and Iran denied accusations. On October 4, 1992, the Kurdish government in Erbil announced that "PKK should either withdraw from the border bases or be expelled." On March 17, 1993, Öcalan declared a unilateral ceasefire in Barelias, Lebanon in presence of Jalal Talabani. He declared that the PKK does not intend "to separate from Turkey." On the 16 April 1993 Öcalan announced that the ceasefire was to become indefinite. But canceled the ceasefire after the fighting began anew in the same year. The organization moved its military camps to Northern Iraq. Syria had only ideological training, intelligence, health and recreation installations. International discussions were going on about a new state in North Iraq, based on the concept of Iraq Federation. UN channelled money to Iraq Federation. With inclusion of the solution for elimination of the PKK's ability to use North Iraq, Turkey joined the US-led coalition to bring truce among the Iraqi Kurds. Two sets of negotiations were tried. US-brokered Drogheda talks on August 9–11, 1995 appeared to be leading to a settlement of the KDP-PUK fight as well as to security guarantees in the form of the KDP controlling the Turkish border. Turkey feared that the KDP-PUK conflict would create a power vacuum in northern Iraq that would facilitate the organization. Turkey performed Operation Steel () between March 20 and May 4, 1995 before the official negotiations began. Some 35,000 Turkish troops moved into northern Iraq attempting to clean out PKK strongholds during the period March 20 – May 2, 1995. The attempt failed. This activity was aimed at giving the conditions of Drogheda talks a chance by eliminating the PKK's infrastructure from the region. Operation Steel gave the chance of Iraqi Kurds building their own control system, but only if they prevent the PKK extending its infrastructure. Drogheda negotiations were killed because of the regional effects on Syria and Iran. To derail this unification, just after the Drogheda Talks II September 12, 1995, PKK launched attacks (September 25, 1995) against the KDP. PKK was saying it can not be ignored. During 1995 Öcalan declared his intention