Strategic Defense Initiative (SDI)

Ballistic Missile: A ballistic missile is a projectile propelled through space that follows a predetermined trajectory towards its target. These missiles can carry nuclear warheads or conventional explosives.

Arms Race: An arms race occurs when two or more countries engage in a competition to develop and acquire more advanced weapons and military technologies. This often leads to an escalation of tensions between the competing nations.

Cold War: As mentioned earlier, the Cold War was a period of geopolitical tension between the United States and the Soviet Union. The Strategic Defense Initiative was seen as a significant development during this era, fueling further competition between the superpowers.