Yeah, It's 21century, so what ?? Ur burrowing bombs is Not better than US burrowing bomb in 60s. Dont make me laugh more on ur poor military knowledge
All of ur weapons still can not compare with US weapons in VN war, u can even make a nuke carrier like US in 60s too. Dont blame me why I always say u guys r Low IQ
And how much for a DF-15C with burrowing warhead ?? is it worth to kill one VN armed man by one DF-15C inside the tunnel ??
We have thousands armed man, so do u have enough DF-15C to kill all ??