Woah! Slow down man! Cargo, oil, exports and imports are the end product what you're expecting here. The simple reason right now most countries are interested in Pakistan is because of one sole objective: security. Russia's underbelly, China's western flank and our northern flank are coinciding there.
With Pakistan being at the helm of the problem zone, it is natural that Russia would want to have some additional leverage in controlling the loonies that are there in Afghan-Pakistan border region that borders with Tajikistan which is well... almost Russian territory. The last thing Russia wants is to send troops to the region once again, although they've been considering it all along.
Specifically, Putin has three important reasons to be interested in Pakistan
That's fine enough but trade relies on one single factor: Security and its involved costs. The area you're talking about is the most hostile in the region. Which insurer would insure those goods transiting from Karachi to NWFP and into Tajikistan? While Tajikistan onwards is safe, Gwadar and Karachi and judging by the current situation in Pakistan, nothing else is
Through Pakistan to where? Russia has a direct land link with China and via its former states Kazakhstan and even via Mongolia The only massive customer of oil and gas in the south across Pakistan is us Indians. Do you really think Pakistanis would allow the gas to reach us without trying to keep it a hostage?
That's where the whole thing changes.
Pakistanis need to get out of their imaginary delusions of how they "defeated the Soviet Union". Afghan war was never your war yet you took part in it, suffering its consequences today.
It was the Taliban and constant supply of money, resources, weapons and political support is what kept the fight alive. One side involved in USSR vs 20+ countries against it.
Had NATO's backing, Saudi's money and China's collusion not been a part of it, USSR and Najibulla government would have crushed Talibunnies with and Iron fist and Afghanistan would have been as developed as Turkey today.
USSR never wanted to fight against Pakistanis. How long do you think would Pakistan have lasted if it was a head-on fight? Two hours is my most liberal bet. The Soviets would have overrun Pakistani territory in a matter of hours without NATO's resource pouring.
Nice flag there.
. The US won't leave Afghanistan completely ever. This is such a golden opportunity. Besides, just google around; Putin wants US to stay because till US engages Taliban via Pakistan's duplicity as a double agent, Russian underbelly is free from jihadi terror. Otherwise it would only harm Russian interests if they have to send troops to the Tajik-Afghan-Pakistan region
Please tell me honestly, don't you think they would have thought about this if they could do it? The situation is not as rosy as you think it is sitting in US.