Something that's been bothering me for a bit. It was a war between the sannin and hanzou the salamander that ravaged his homeland and destroyed it. In paying back hanzou his friends died. He is of the uzumaki clan which has close ties to the leaf. He was trained to be a ninja by Jaraiya who is a leaf ninja.
So while there were two forces at work in his "pain" the one that he should have felt akin to - the leaf village, is the one he attempted to completely destroy, while the one who did nothing for him, and only stuff against him, he takes that over instead. It just seems kind of backwards to me.
his country of the village of whirlpool or the
eddies village ever one was destroyed and the
scattered all over the the world so he didn't
that the leaf and the village of whirlpool had
close relations with the leaf
IMO, Nagato was born after the Whirlpool country
was destroyed and his parents took refuge in the
Rain country with their identity kept secret even
to Nagato. Almost same as what the mother of
Haku(ice element user) did to avoid persecutors.
And because of a mistake, his parents were killed
by KOnaha ninjas during the 3rd great ninja war
which caused Nagato to hold grudge against Konoha.
Even Naruto understood that it is almost
impossible to remove the urge to take revenge and
forgive the killer of your love ones.
before nagato was twisted, the forehead protector
that he saw that killed his parents was konohas.
that makes sense for him to crush the leaf
village. and i think , the Pain/ Vengence
gradually developed in nagato,.. along with his
ninja skills that makes him confident and makes
him thought he can do something about the war and
the ninja world. he was silently become what he is
before the fight with naruto.