sentences:  One aspect of the testing environment involves the features a particular location might offer that could help (or hinder) testing of weapons such as supersonic aircraft technologies, associated munitions, and space systems.For example, the Special Weapons Center was established at Kirtland Air Force Base, New Mexico because of the concentration of technologies and industries supporting nuclear weapons development in the region.In 1958 Special Weapons Center scientists began to simulate the effects of nuclear explosions in order to strengthen US missiles, missile sites and aircraft against possible enemy attack.