Additionally, it is believed that the PKK makes money through the sale of various publications, as well as receiving revenues from legitimate businesses owned by the organisation. {{fact}}
At the height of its campaign, the PKK received support from other countries, most notably [[Syria]]{{ref|OrganizedCrime}}, but also [[Greece]]{{ref|GreeceConnection}}, [[Iran]]{{ref|IranConnection}} and the [[Soviet Union]]{{ref|SovietConnection}}. The PKK also developed links with paramilitary groups among other ethnic groups which harboured historic grievances against Turkey such as the [[Armenian_people|ethnic Armenian]] [[ASALA]] {{noteref|SovietConnection2}}, as well as groups which shared its [[left-wing]] [[nationalist]] ideology such as the [[Palestine Liberation Organisation]], [[ETA]], and to a lesser degree the [[Irish Republican Army]]{{noteref|SovietConnection2}}. Through the large Kurdish immigration in [[Germany]], it also formed close contacts with violent left-wing political groups in that country. From early 1979 to 1999 [[Syrian terrorism|Syria]] provided valuable safe haven to PKK under its controlled region [[Beqaa|Beqaa Valley]]. During 1990s, [[Iran|Iran]] provided resupply with weapons and funds. [[Greece]] has allowed PKK camps to function on its soil. In addition the retired Greek army general [[Dimitris Matafias]] has paid numerous visits and offered assistance. Currently Syria implemented restraints over PKK on its soil, after [[History_of_the_Kurdistan_Workers_Party#The undeclared war|the undeclared war]] with Turkey. Turkey is expecting positive developments within the long term, but even during 2005, there were Syrian nationals operating in Turkey for the PKK. Iran [[Kurdistan_Workers_Party/States_Listed_as_Terrorist|listed]] PKK as a terrorist organization after Iran's supply of resources began to used in its soil.
On [[30 September]], [[1995]] Damascus opened a gate to contacts with high ranking German [[Christian Democratic Union of Germany|CDU]] MP Heinrich Lummer and German intelligence officials. The PKK has also strong ties with influential persons around the world. [[Danielle Mitterand]], the wife of the former [[President of France]] has active connections with elements of the PKK's leadership. {{ref|mitterand}}