To begin with dietary changes must occur, particularly in the west, not only to reduce exploitation and thereby depletion of local food resources from other nations less equiped to cater even for themselves, but to food items with a greater nutritional value per unit weight, thereby reducing the area needed to produce the same requirement per population head, and also food items which are more efficient in the energy and water need to cultivate them.
This means that the same land area yields more,  and so satisfies a greater demand.

Next, it could potentially be the answer to a couple of problems:

The people of Afghanistan, and Iraq need stability through a sound economy, what better way to produce such jobs and subsequent wealth than to get them farming to supply international markets?

The increase in supply would bring down the price of those food commodities and enable the poorer people of the world to be better able to afford food, and gain access to it.

The newly employed paople of these nations suddenly become less susceptible to recruitment to terrorist organisations, the "coallition forces" currently engaged there therefore have to spend less on their militaries, and can then spend more on Aid to the most deprived.

An overall decrease in global poverty ensues, and as a result, those matters that always attend poverty decrease too: disease, famine, war, terrorism, crime.
...and population explosion is slowed, stabalising the situation in many ways.

And just as an afterthought:

....Afghanistan's number one export is opium derived from poppies, opiate drugs in the medical profession used for pain relief is often too high for sufferers to afford.
Why don't the big pharmaceutical companies buy their existing crop, lower the price of these drugs for those who need them, and thereby enable afghans to afford farm equipment to build a new future for themselves?

None of this seems possible because the western nations leaders are too dumb to pull their heads out of their backsides to see this chain of events and the simple operations needed to engender them, and Al Qada's failure to comprehend that their continued actions  perpetuate the current situation and so ensuring the continued misery of the people they claim to be fighting for!