The shortest war on record took place in 1896 when Zanzibar surrendered to Britain after only 38 minutes. The longest was the so-called 100-years war between Britain and France. It actually lasted 116 years, ending in 1453. It was this war that introduced the direct taxation of income, a British invention designed to finance the war with France.
Since 1495, no 25-year period has been without war. Since 1815 there has been more than 200 interstate wars.
War is not healthy for children and other living beings. The very first bomb that the Allies dropped on Berlin in World War II killed the only elephant in the Berlin Zoo, it is said. The NATO attack on Serbia in 1999 (the Kosovo war) killed more animals than people. And then, of course, there are cases of nuclear submarines crashing into each other and nuclear bombs lost at sea.
“I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.” ~ Albert Einstein