Man is Social animal having fighting spirit.Perhaps his very first invention was a simple weapon like stone tied to a stick.In middle ages more deadly method of murder was invented.it was a gun powder. it could b fired up to 750 shots a minute later man invented modern guns and weapons to destroyed his enemy at a long distance.These Weapons appear almost harmless when we compare it to modern weapons like atomic bomb and hydrogen bomb which destroyed big cities in few seconds like in Japan.                                                                                                                                                                                         Over 80,000 people were killed in those incidents. Now a days chances of another world war are there before man. the clashes between two super power America and Russia on the problem of Ukraine and armament race is going on. one who starts the war it not only destroyed the innumerable lives and property but also the traditions, culture and civilization of mankind.Now a days the war is in triangular way there is war on land, on air and in sea.There is no specific target of bombardment Every city become target of modern wars. A small sized man can finished the city of bravest man.                                                                                                                                                                                           Thousands of Chinese were killed by Japanese bomb in war and many beautiful cities were destroyed in a minute. After the wars it effects are even more deadly.Wars also have very bad effet on economy of the country. Hunger, disease and misery follow every war. Thus wars give nothing to mankind but widows, taxes,wooden legs and debts.Modern wars have nothing in store for mankind except death and destruction.