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.
PRINCIPLES AND TENETS. The role of the Air Force is to defend the United States and protect its. interests through air and space power, guided by the principles of war and. the tenets of air and space power. Airmen must understand these funda-. mental beliefs as they apply to operations in the air, space, and information. realms.