Forget the pains of partition, the wars with India, the separation of East Pakistan, and focus just on the past half decade or so:
Hundreds of terrorists attacks - car bombings, truck bombings, markets bombed, hotels bombed, LEA, Intelligence and Military HQ's bombed - tens of thousands dead, most in the last three years or so. Millions uprooted and rehabilitated in COIN campaigns in FATA and Swat.
80,000 dead and millions impacted in a devastating earthquake in 2005, and now tens of millions impacted, rendered homeless and their crops and businesses destroyed - millions facing starvation - and yet we continue.
We continue despite man made and natural calamities and the utter incompetency of our ruling elites, military and civilian - we continue despite our social and economic ills, and we put our resources together as common Pakistanis to help in times of need. As a nation we have proven our resilience (and yes, our strength and indeed courage under duress of all kinds) time and again, and will continue to do so.
The NW title is indeed apt, for few nations come to mind that have had to deal with the kinds of challenges in the short span of time that Pakistan has had to deal with.
And yes, every nation/individual is capable of acts of great courage and virtue, but it is only those who actually commit themselves to those acts and carry through with them that are worth mentioning.