For the most part it was the Cuban Missile Crisis that made the country so dangerous, but events like the Invasion off Cuba didn't help.
the control
The warhead section of a guided missile contains the main explosive charge. This is the part of the missile that is designed to detonate upon impact with the target in order to achieve the desired destructive effect.
varable
The independent variable.
It wasn't tested. That's part of the reason why it crashed.
The part of the experiment that is changed and tested is called the independent variable. This variable is manipulated or controlled by the researcher to observe its effect on the dependent variable.
Your heart, that is part of the cardiovascular system is tested with EKG or ECG test.
control
control
control
control