- Source: Army of observation
- Army Air Corps (Britania Raya)
- Alutsista Tentara Nasional Indonesia Angkatan Darat
- Moeldoko
- Konfederasi Amerika
- Lauri Törni
- Pusat Komando Pasukan Katak
- Pertempuran Marne Pertama
- William Westmoreland
- Lockheed P-2 Neptune
- Revolusi Oranye
- Army of observation
- French Imperial Army (1804–1815)
- Third Reserve Army of Observation
- Franco-Prussian War order of battle
- Major general (United States)
- Massachusetts National Guard
- Invasion of Hanover (1757)
- Army of the Danube (1806–1812)
- Observation post
- National Guard (United States)
An army of observation is a military body whose purpose is to monitor a given area or enemy body in preparation for possible hostilities.
Some of the more notable armies of observation include:
Third Reserve Army of Observation, a Russian army tasked to monitor the Austrian border in 1811 prior to the French invasion of Russia
The army of observation at Fort Jesup, Louisiana, United States, which monitored Texas' transition from Spanish to Mexican control, and to eventual independence
The Hanoverian Army of Observation which monitored the border prior to the French Invasion of Hanover in 1757