Obviously, war is beneficial to the development of science and technology .In order to win battles, many countries often try to find new strategies and develop more weapons. Therefore, many talented people are collected to do research about technology and they often succeed in developing new hi-tech weapons .History shows that many of these weapons and equipments developed into useful machines which make peoples life convenient nowadays.
For a nation, war helps ieir countrys weakness is during the war.
Since a war often leads to a decrease in the population, our world can release from the great population burden relatively .And without giant population, much resource and energy can be saved to develop our economy and make our life better. Also, our environment can benefit from it .Less pollution and waste e after less people .Our world will bee more beautiful.
Last but not least, war contributes to a harmonious world .Since people have witnessed the numerous damage caused by the war, they bee aware of the importance of peace .Thus, people from all over the world start to cooperate with each other to build a beautiful and peaceful world.文化鉴赏冠心病企业建站