Why is violence between Pakistan and Afghanistan recurring?

Inside StoryPakistan has carried out new strikes inside Afghanistan.Pakistan and Afghanistan were once allies, but they have become enemies.In 2021, Islamabad hailed the Taliban’s return to power in Kabul as a victory. But relations have deteriorated.Recommended Stories list of 3 itemslist 1 of 3Afghanistan says three killed in Pakistani air attackslist 2 of 3Pakistani forces kill Afghan Taliban fighters in border escalationlist 3 of 3Suicide bombing in Pakistan’s Dera Ismail Khan kills at least 12 peopleend of listIn part, it is due to accusations that the Afghan government is harbouring the Pakistan Taliban (or TTP) and other armed groups that have claimed responsibility for attacks inside Pakistan. Kabul has denied sheltering or backing those fighters.The many attempts to stop the fighting have failed. So, what will be the fallout of this cycle of violence?Presenter: Adrian FinighanGuests:Syed Akhtar Ali Shah – Former inspector general of police in Khyber Pakhtunkhwa provinceFaiz Zaland – Professor of political science at Kabul UniversityMichael Semple – Former EU representative in Afghanistan