Many wars had occured in end of 19th century and beginning of 20 th century.many people had lost their lives and had to migrate from place to place. many men were forced to join the wars if they wont they were killed very brutally. so as men were in wars many women had to earn bread for their families.so in someway they gained financial independence. many people lost their loved ones . death and destruction was more. there was a lot of damage caused to man kind. especially bomb attacks on hiroshima and nagasaki killed 1,50,000 to 2,46,000 people immediately.so v can conclude that wars r only for destruction and could cause no benefit.