Your history tell you that Pakistan attacked on Kashmir in 1948,
our history tell us that India attacked over Kashmir in 1948, as India violate the treaty and occupied siachen, Arunachalpardesh, these realities show that India had attacked on Kashmir in 1948.
The self determination of the kashmir,s people was pending for the next time which was really to become the part of Pakistan, when Indian govt became to know that Kashmir is going to ward Pakistan, Indian army attacked on Kashmir, Pkistani Mujahideen occupied AZAD kashmir from Indian army.
If Pakistan army attacked first then the large parts of Kashmir should be occupied by Pakistan.