Dear friend, you are sharing non official government sources. the official border lines by Iraqi government you can see it in official sources like,     
Diyala gov site: https://diyala.gov.iq/    
You can scroll down and see the map, it include the areas where you cut from Diyala which is wrong.     
Also, here is an interactive official gov map: https://saad.moch.gov.iq/sites/default/files/IraqMap_ar.html    
And if you don't want official gov maps here are the map from wiki: https://commons.wikimedia.org/wiki/File:Diyala_map.svg     
Or you can see the state of borders in other maps, like google map:     
Diyala Governorate: https://goo.gl/maps/hb1pqmJhX7CpzjXE8         
Sulaymaniyah Governorate:  https://goo.gl/maps/LSvLZcyJMDU3CLP77      
All of these source I sent you have the borders correctly matching the official Iraqi gov sources.       
Best Regards.      