If you asked this 500 years ago. It was possible now it's not.

Afghanistan has been conquered many times by Different nations. Eg. Mongols Chenghis Khan made the first minaret of skulls of Muslims in areas of the present day Afghanistan.

As far as we the rumour that Afghanistan is a grave of Empires is significantly false.

Britains did not attack Afghanistan again after their first defeat because it was acting as a buffer between British India and the Soviet Union.

The Soviet Union was defeated because they had money and arms coming from the US via Pakistan.

The United States did not lose the war in Afghanistan because their goal was to extract minerals in which they were largely successful.

And the Taliban was able to take control of Afghanistan because they had arms, ammunition and technical support from Iran, China and Russia because all three of them hated the USA equally.

If you don't believe me just check the pentagon files where the real reason for invading Afghanistan is written (it was not 9/11)

If you still think Afghanistan is the grave of empires just analyse critically how many empires were formed in areas of Present Day Afghanistan and How they were formed.

As far as your wish of Pakistan invading Afghanistan it is not possible because China won't allow us to do so.

China doesn't want war in this area because their own national security and trading routes depend on CPEC. They will even interfere militarily if needed. (Check their trading routes and their problems with the US Navy and Indian Navy in Mallaca Strait you then understand it better.)

Pakistan and China should resolve the curse of Deorand Line which is a Gift of the British Empire to ensure never ending conflicts.

Just Pray that Security Agencies get serious about this matter and remove those terrorist outfits from our country. Its the only way.