Erdogan's long-awaited visit is the first by a Turkish leader since 2011 and follows years of strained relations as Ankara ramped up cross-border operations against PKK based in mountainous, mainly Kurdish northern Iraq.
Iraq has said Turkish operations violate its sovereignty and have killed civilians. Ankara says it must protect itself against the PKK, which Turkey and its Western allies designate as a terrorist group.
Turkey plans a new swoop on the militants this spring and has sought Iraqi military cooperation, in the form of a joint operations room, as well as recognition by Baghdad of the PKK threat.
Cooperation on big economic projects is also on the table.
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Türkiye launches new operation against PKK
