“This book was a fun read that was hard to put down.” -Toy Soldier Collector & Historical FiguresMilitary bodies around our planet have encountered, and even clashed with, UFOs, or as the U.S. military now defines them, Unidentified Aerial Phenomena – UAP. These observations and engagements have occurred for well over a century, at least, and on all continents.Different nations and cultures have had vastly different interpretations of the UFO/UAP phenomenon – from the Soviet Union and Communist China to the Western democracies. The UFO/UAP phenomenon has not diminished and has instead grown in proportion in recent years. It has now assumed the mantle of legitimacy in many countries: in government circles, the media, among the general public, even in the world’s militaries. What are less well-known, or even concealed, are the encounters our planet’s militaries have had with UFOs – some of which have proved fatal to both sides.There were reported clashes between UFOs and both Allied and German aircraft in the First World War. In the Second World War, sightings of what became known as ‘Foo Fighters’ were commonplace. After that war, UFO-related incidents increased exponentially, culminating in the wave of observations in 1947. In July of that year, the United States Air Force announced the capture of a ‘flying disk’, outside Roswell, New Mexico. The USAF quickly withdrew the announcement, but it was verified for decades by scores of reliable witnesses –military and civilian. The crash was possibly caused, albeit unintentionally, by the U.S. military. Five years later, in July 1952, for two consecutive weekends, UFOs hovered over Washington, D.C. USAF jets trying to intercept the strange craft were outrun by the UFOs.UFOs/UAP have tampered with world nuclear forces, including shutting down strategic missiles of the United States, and activating Soviet ICBMs, almost setting off an unordered (by Soviet authorities) launch of atomic warheads against the United States. USAF and RAF personnel, including a Lieutenant Colonel, also encountered a UFO on the ground, and observed others above their joint air base at Rendlesham Forest in the UK in 1980. UFOs have played ‘cat-and-mouse’ games with the latest fighter-bombers of the United States Navy since 2004, and these events have been captured on videotape as verified by the pilots, and the navy.This book takes a no-nonsense approach in its careful research, with hundreds of sources cited, including formerly classified documents and testimony regarding UFOs/UAP. As readers will discover from the mass of evidence presented in this book, it is no longer a question of whether UFOs exist or not. Such phenomena are an incontrovertible fact that has prompted the United States to craft plans on how to resist an alien invasion. Is there any need for humans to be concerned about the alien presence in the skies surrounding our planet? Yes, be very concerned.