Defence Inshot

 THE     SECREAT MISSILE      OF INDIA                                                    AGNI 6 All around the world there are 9 nuclear states which are are USA, RUSSIA, CHINA , FRANCE , UK , INDIA , PAKISTAN , NORTH KOREA and ISRAEL All of these countries need some kind of nuclear weapon delivary system to deploy or fire their nuclear weapons and in this era of changing geopolitics every country want`s to make its borders safe from all the extenal threats the threats may just not lie on its border but can also lie in a different continet i.e a asian country may have its enemy in north america or in europe Nuclear weapons are believed to be the best deterant (a weapon kept to prevent your enemy to attack your country ) among all the countries in the world  SO  ICBM`s (INTER CONTINENTAL BALLESTIC MISSILES ) where developed during the cold war which had the ranges from 10000 to 15000 km range   The first successful test followed on 21 August 1957; the R-7 flew over 6,000 km (3,700 mi)