SR71 Blackbird was the gate through of modern aviation. A plane that not just broke any aviation record but, simply shattered them. The fastest and highest flying plane which holds it’s record still now even 60years after. An engineering marvel that shows how much humans are capable of when they got pushed to their limits. These planes did remain in service for nearly 30years, and in between these years approximately 4000missiles were fired at them but, non succeed to bring one down. Because the plane was just simply too fast. After the operational flight in 1968 Lockheed ordered too destroy all of the tools used in making the SR71 Blackbird.
World War 1 also known as the Great War was the first war in history that showed massive destruction, political influence, so much casualties, start of using modernized weapons. The first war that fought between two groups having many allies in both groups. It caused fall of many nations, economical recession and the very reason for another, more destructive world war to come.
Cold war continued for 45long years (1947-1991) , during this time entire world was in high tension. After the second world war, two raising superpowers United States and Soviet Union were became rivals openly yet restricted. The war had no direct conflict between these nations but they supported many of their allies and some more nations to take control upon. It was a geopolitical, economical struggle to proceed own political views like communism or capitalism. The war triggered the nuclear arms race which still continues today. Much modern development, most advanced spy operations, mind control projects has been done. Basically this was a war without direct fight but, constant fear of mass destruction.
World War in enough scary for any individual as both world wars showed an enormous loss of property, so much money was invested, and most importantly so many people got died. In these two, the World War II is the most devastating which continued for six years and left the unforgettable scars in human mankind.