Aside from nuclear weapon, biological weapons for massive killing and attacks will also be part of the modern battlefield. The more modern we get, the more inhumane wars could be. The more that we achieve, the deeper that we push our one foot into grave. I just hope that a kind of any war will not happen any soon or ever. Because, if it's ever going to take place now or in the next generation, I think it'd be the most brutal because of our own technologies, of our discoveries and inventions.