Turkey says 26 PKK militants were killed in military operations despite peace efforts / PKK founder Abdullah Ocalan calls for Kurdish militant group to lay down arms / 'Turkiye won't allow PKK peace process to be sabotaged, delayed' / Kurdish militant group PKK declares ceasefire after decades of conflict with Turkey / PKK founder calls on followers to disarm in conflict with Turkey / PKK militant group declares ceasefire after 40-year insurgency against Turkish state / Kurdish PKK militia declares ceasefire, heeding jailed leader's call / Turkey seeks dissolution of PKK-linked groups in Syria and Iraq, following leader's peace plea / PKK declares ceasefire with Turkey, ending 40 years of armed struggle / PKK declares ceasefire in Turkey ending years of bloodshed