Sentry, known for most of its lifetime as LoADS for Low Altitude Defense System, was a short-range anti-ballistic missile (ABM) design made by the US Army...

Parliament Hill and posts sentries at Rideau Hall, with the National War Memorial being sentried by the National Sentry Program (NSP), which is carried...

The Boeing E-3 Sentry is an American airborne early warning and control (AEW&C) aircraft developed by Boeing. E-3s are commonly known as AWACS (Airborne...

Sentry is a highly automated impact prediction system operated by the JPL Center for NEO Studies (CNEOS) since 2002. It continually monitors the most up-to-date...

was part of a $1.7 billion renovation program for Cheyenne Mountain. 'Granite Sentry' was an improvement program for the complex. It aimed "to provide...

Sentry (Robert "Bob" Reynolds) is a superhero appearing in American comic books published by Marvel Comics. Created by Paul Jenkins and Jae Lee, with uncredited...

HU-25 Guardian jet, the HC-144A Ocean Sentry is part of the Coast Guard's Integrated Deepwater System Program of recapitalization and new-asset acquisition...

Sentry Eagle, the National Initiative Protection Program, is a compartmented program of the National Security Agency's (NSA) Central Security Service (CSS)...

Royal Canadian Legion. Since 2007, the Canadian Armed Forces have posted sentries at the tomb, and the National War Memorial, from April to November. At...

The Canadian Armed Forces also maintains a National Sentry Program, where its members perform sentry duties at the National War Memorial from early-April...