An army, ground force or land force is a fighting force that fights primarily on land. In the broadest sense, it is the land-based military branch, service branch or armed service of a nation or country. It may also include aviation assets by possessing an army aviation component. Within a national military force, the word army may also mean a field army. In some countries, such as France and China, the term "army", especially in its plural form "armies", has the broader meaning of armed forces as a whole, while retaining the colloquial sense of land forces. To differentiate the colloquial army from the formal concept of military force, the term is qualified, for example in France the land force is called Armée de terre, meaning Land Army, and the air and space force is called Armée de l'Air et de l'Espace, meaning Air and Space Army.

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The US Is Mobilizing an Army to Fight the Climate Crisis

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Lizards on a US Army base are stress eating due to helicopter noise

Space Force to Take on the Army’s Missile Warning Ground Stations in October | Air & Space Forces Magazine

European-native and world's deadliest mushroom conquered California with a clone army, study reveals — The death cap mushroom accounts for more than 90% of worldwide mushroom-related deaths. Its ubiquitous spread could be down to a weird genetic cloning trick.

When The U.S. Army Bombed Mauna Loa To Turn Aside A Lava Flow

Naval Academy's NASA-inspired uniforms extend Army-Navy Game's space history

US Naval Academy unveils NASA-inspired football uniforms ahead of Army-Navy game

Oldest army ant ever discovered reveals iconic predator once raided Europe

Oldest army ant found in 35-million-year-old Baltic amber

US Army bullets unexpectedly found at 1918 Mexico border massacre site

Archaeologists search for Borders valley's day of destruction. Archaeologists are hoping to leave a different type of mark on a remote Borders valley destroyed by an English army almost 500 years ago.

The surprising Swiss-Army-knife-like functions of a powerful enzyme

Army of swimming microbots eradicate deadly pneumonia infection from mice lungs

Leonard Cole, Who Detailed Secret Army Germ Tests, Dies at 89

An Underground Army: The 8,000 Terracotta Warriors

Army officer part of newly resumed cooperation for International Space Station

Ukraine's army of hackers failed to thwart Russia and quickly gave up

U.S. Army hands over satellite operations to Space Force, but keeps a foothold in space

Army looking at new ways to use space technology for unconventional warfare