'Potter, what is that?' shouted Voldermort

They were standing in a clearing facing each other scorch marks littering the ground by missed spells.

'Oh this.' Harry replied 'Its a tactical neucular warhead. With a 5 megaton uranium warhead.'

'No muggle wwapon will be able to stop me Potter.'

'I dont know about that. It was invented in 1945 by the US army to destroy entire cities.' 'Here catch.'

And with that he apperated away.

5 secconds later Voldermort was reduced to his component atoms by a wave of nucular fire that destroyed him and all of his followers.