The 40 years' life span of the PKK is completed. Our Prophet (saas) says in his hadiths; "The life of the antichrist is 40 years," he says. Because that lifespan has come to an end, God has given the command for the ruin of that lot. I mean it is Hazrat Khidr (pbuh) who executes that command. That is to say, when a command is given for the ruin of a group, we should know that Hazrat Khidr (pbuh) is the one who undertakes that command. - Harun Yahya