That which a person can confront (face without flinching or avoiding) he can handle.
The first step of handling anything is gaining an ability to face it.
It could be said that war continues as a threat to man because man cannot confront war. The idea of making war so terrible that no one will be able to fight it is the exact reverse of fact—if one wishes to end war. The invention of the longbow, gunpowder, heavy naval cannon, machine guns, liquid fire and the hydrogen bomb add only more and more certainty that war will continue. As each new element which man cannot confront is added to elements he has not been able to confront so far, man engages himself upon a decreasing ability to handle war.