Myocarditis can be caused by a variety of infections and conditions such as viruses, sarcoidosis, and immune diseases (such as systemic lupus, etc.), pregnancy, and others. The most common cause of myocarditis is infection of the heart muscle by a virus.The virus invades the heart muscle to cause local inflammation.he most common cause of myocarditis is infection of the heart muscle by a virus. The virus invades the heart muscle to cause local inflammation.
The onboard electronics are hardened to protect against an electromagnetic pulse, and Air Force One is equipped with advanced secure communications equipment, allowing the aircraft to function as a mobile command center in the event of an attack on the United States.
The movement of friendly assault forces by rotary-wing aircraft to engage and destroy enemy forces or to seize and hold key terrain. It is a deliberately planned, precisely synchronized, and vigorously executed combat operation intended to surprise the enemy by conducting a vertical envelopment at an unexpected time and place. An air assault allows friendly forces to maneuver over extended distances and complex terrain to attack the enemy when and where it is most vulnerable.