War is always a curse for all of us. On the other hand, peace is always a blessings. So, we should always think about peace, not war. In this way, we can be deprived of war. So, there's not should be any question that where will it start from? From my perception, we should always think of peace. Then, by thinking one by one, we can bring peace instead of war.
You see how much our governments to allocate budget for it to produce and develop new weapons. A weapon not only for protection, it is to kill. Probably the correct one wise man said that if you want peace, then prepare for war.
It is believed that the phrase "if you want peace, prepare for war", or, in the original, "si vis pacem para bellum", was used by Roman historian Cornelius Nepos. After the invention of nuclear weapons the world has 71 years does not lead to global wars. I think this is the longest period without war.
Well leaders are probably aware that the next time a world war would blow up, it going to be different from anything hw world has seen. Nuclear warfare, which would most likely be the case, can pretty much wipe out all of us. There won't be any victors likenthe previous two world wars as whats going to be left in the aftermath would not be enough to support survival