The thought process of every mind has to be changed. A larger scenario is playing the big role.
War and battle uses huge amount of fuel, missiles , electricity etc. which are created using earth resources. Also many lifes are lost not only of humans but small insects, soil animals,plants etc. living at the border or battleground. We are destroying earth for the country which itself is on earth,which is very idiotic. Also all this is happening as we ourself has formed the borders and countries. At last all this generates huge profit in the pockets of weapon selling and related companies.