who is at war ?

Every country is preparing for war and building its army, navy and air force and building nuclear weapons or weapons for mass destruction. The question is if countries are preparing for war then who is at war? During wars we lose and post war too we lose as we start preparing for the next war. Is it not insane and don’t we have to wake up. Leaders of countries, cities, states, business and families lets stop preparing for war and lets live life as it’s a gift given to us.