So one can see India and Pakistan are on same side of issue as both recognise the borders drawn by British imperialist.
While China and Afghanistan are on same side as both refuse to recognise the Mcmohan line and Durand lines drawn by Britishers.
So if pakistan supports the claims made by China against India, it has to accept that durand line is also false (thereby giving pastoon dominated areas to Afghanistan), isn't it a complicated situation for Pakistan.
No dispute of border with Afghanistan as we pushtoons chose Pakistan in a referendum, so Afghanistan is ignorant nite to understand that we do not wish to be with them, they can lay their claims but deep down they know that pushtoons of Pakistan will tell them to get on their bike.
so Italy not complicated as even if there was another referendum pushtoons will show a middle finger to afghans answer they know it.
India however forced its way in to Kashmir it has not given a referendum to the kashmiris as it knows that people of Kashmir will choose Pakistan.