Global Defense Force

The Global Defense Forces (地球防衛軍 ' Chikyū Bōeigun') is an international military and scientific organization formed by the United Nations to protect humanity from monster activity. The organization consists of a scientific research and development arm and a militarized arm, including the Army, Navy, Air Force and Mecha Guard.

Divisions
The UN Global Defense Forces is composed of four coequal military service branches. Three of the branches, the Global Defense Forces Army, Global Defense Forces Navy and the Global Defense Forces Air Force are traditional military units with soldiers directly engaging the monsters. The fourth branch, the Global Defense Forces Mecha Guard, was officially made public and established in 2012 as part of Operation: Destroy All Monsters.

GDF Army
The Global Defense Forces Army (GDF Army) is the land service branch of the Global Defense Forces. The military head of the GDF Army is the chief of staff of the Army, who is assisted by the vice chief of staff of the GDF Army and sergeant major of the Army. It was founded in 1999 as the Earth Defense Force after the battle between Godzilla and Zilla in New York.

GDF Navy
The Global Defense Forces Navy (GDF Navy) is the maritime service branch of the Global Defense Forces. The military head of the GDF Navy is the chief of naval operations, who is assisted by the vice chief of naval operations and master chief petty officer of the Navy. It was founded in 2005 as the Naval Administration of the Earth Defense Force to better handle the rampaging King Kong.

GDF Air Force
The Global Defense Forces Air Force (GDF Air Force) is the air service branch of the Global Defense Forces. The military head of the GDF Air Force is the chief of staff of the Air Force, who is assisted by the vice chief of staff of the GDF Air Force and master sergeant of the Air Force. It was founded in 2004 as the Air Force Division of the Earth Defense Force to aid Mothra in her battle against Battra.

GDF Mecha Guard
The Global Defense Forces Mecha Guard (GDF Mecha Guard) is the maritime land service branch of the Global Defense Forces. The military head of the GDF Mecha Guard is the chief of staff of the Mecha Guard, who is assisted by the vice chief of staff of the GDF Mecha Guard and master chief of the Mecha Guard. It was founded in 2012 as part of Operation: Destroy All Monsters.

Mecha Units

 * Mechagodzilla (built 1993; acquired 2012)
 * Version 1.0 "Prototype"
 * Built: 1985-1991
 * First test: 1993
 * Version 1.1 "Prototype"
 * Built: 1995-1996
 * First test: 1997
 * First battle deployment: 1998
 * Version 2.0 "The MECHA"
 * Built: 1998-2002
 * First test: 2003
 * Second test: 2005* (planned)
 * First battle deployment: 2004
 * Version 3.0 "Mechagodzilla"
 * Built: 2005-2009
 * First test: 2010
 * Second test: 2011
 * First battle deployment: 2012
 * MOGUERA (built 2010; deployed 2020)
 * Version 1.0 "UN MECHA"
 * Built: 2005-2010
 * First test: 2011
 * Version 1.1 "UN MECHA Prototype"
 * Built: 2013-2014
 * First test: 2015
 * First battle deployment: 2020
 * Jet Jaguar (built 2012; deployed 2020)
 * Version 1.0 "Jaegar"
 * Built: 2008-2012
 * First test: 2013
 * Version 1.1 "Jet Jaegar"
 * Built: 2014-2015
 * First test: 2016
 * Version 2.0 "Jet Jaguar"
 * Built: 2017-2019
 * First test: 2019
 * First battle deployment: 2020
 * CyberZilla (built 2010; acquired 2019)
 * Version 1.0 "Resurrection"
 * First attempt: 1999
 * Second attempt: 2003
 * Third attempt: 2005
 * Version 2.0 "CyberZilla"
 * Built: 2008-2010
 * First test: 2011
 * First battle deployment: 2012
 * Version 2.1 "CyberZilla"
 * Built: 2012-2013
 * First test: 2013
 * Second test: 2014
 * Version 3.0 "CyberZilla"
 * Built: 2015-2017
 * First test: 2018
 * First battle deployment: 2020