Thats the thing whoever starts the movement first will have to bear very heavy casualties.
Thats the reason pakistan army has not crossed LOC for past 130+ days.
Death toll will be too much on whoever tries to cross either side first.
We can move in as a counter attack not as first offense cuz we are less in numbers.
Whoever starts the offensive movement will need 4x larger numbers of men because 75% of the attacking force will be massacred with in first wave. Only 25% will survive to push on.
Pakistan can't afford this at the moment unless civilians also join in.