The U.S. Missile Defense Review (MDR) draws attention as a central document in this area. two reviews published so far (2010 and 2019) within year of the Nuclear Posture were an important addition to National Strategy. latter is devoted clarifying Washington's political-military course, Review, MDR, Space deal with most elements military policy United States. Taking into account positi...

Given the agreement among TCSCF, MP2, and MRMP methods, it is concluded that the structure of Si9H12 is symmetric, that dynamic correlation does not play a major role in determining the structure, and that DFT incorrectly predicts Si9H12 to be buckled.

This essay offers a broad view of active defense derived from the concept of active air and missile defense. This view admits a range of cyber defenses, many of which are widely deployed and considered essential in today’s threat environment. Instead of equating active defense to hacking back, this wider interpretation lends itself to distinguishing different types of active defense and the leg...

The development of modern air defense missile systems requires robust simulations to adequately place margins on hardware and software design. Coupled with this is the need to accurately model surface reflections that constitute clutter to the missile system. A thorough understanding of these reflections is becoming increasingly important as the air defense threat evolves from large, high-altit...

The National Strategy for Homeland Defense, published by the then U.S. Office of Homeland Security in July 2002, directs all U.S. government agencies to conduct vulnerability analyses of their sensitive systems. This policy applies to Department of Defense systems, including the simulation packages used to design and exercise national missile defense. Many, if not most, of the previous vulnerab...

n the Air Defense Systems Department, systems engineering is a way of thinking. More than a “process,” the systems perspective drives our approach to solving emerging air and missile defense problems as the threat becomes more advanced and the tactical environment more complex. This perspective and the requisite tools have evolved with the increasing complexity of those systems. In this article...