View source for Kingdom of Sierra and weapons of mass destruction

{{Icons|E-class|Altverse II}}
{{Infobox nukes
| country_name      = Kingdom of Sierra
| image_location    = 
| program_start     = April 19, 1946
| first_test        = October 1, 1950
| first_fusion      = March 19, 1954
| last_test         = September 18, 1992
| largest_yield     = '''25 {{W|TNT equivalent|Mt}}''' (June 10, 1964)
| total_tests       = '''716''' detonations
| peak_stockpile    = '''16,250''' warheads (1970)
| current_stockpile = '''2,050''' total
| current_usable_stockpile = '''790''' (2022)
| current_usable_stockpile_megatonnage = '''≈410'''(2022)
| maximum_range     = '''{{Convert|13000<!--15000-->|km|0|abbr=on|sigfig=2}}''' (land)<br />'''{{Convert|12000|km|0|abbr=on|sigfig=2}}''' (sub)
| NPT_party     = '''Yes''' (1968, one of six recognized powers)
| annual budget     = '''$19.7 billion'''
}}
{{Weapons of mass destruction}}
The '''[[Kingdom of Sierra]]''' is known to possess or have possessed three types of '''{{W|weapons of mass destruction}}''': {{W|nuclear weapon}}s, {{W|chemical weapon}}s, and {{W|biological weapon}}s. It is one of the six [[List of states with nuclear weapons|nuclear-weapon states]] recognized under the [[Treaty on the Non-Proliferation of Nuclear Weapons]]. 

The Kingdom was the third country to develop nuclear weapons (after the [[United Commonwealth]] and [[Germany]]). Its first nuclear test took place on October 1, 1950 and its first {{W|hydrogen bomb}} test occurred on March 19, 1954. Tests continued until September 18, 1992 after the Kingdom of Sierra signed the [[International Nuclear Test Ban Treaty]]. The Kingdom of Sierra possessed the world's second-largest number of nuclear weapons during its peak stockpile in 1970 with 16,250 warheads. As of 2022, it continues to have the second-largest number of nuclear weapons, with 2,050 warheads, after the United Commonwealth.

==Nuclear weapons==
{{Main|Nuclear weapons of the Kingdom of Sierra}}

The Kingdom of Sierra has the world's second-largest number of nuclear weapons. It is one of the six recognized nuclear powers of the [[Treaty on the Non-Proliferation of Nuclear Weapons]], commonly known as the Non-Proliferation Treaty or NPT. It has never used any of its nuclear weapons in combat. All of its nuclear detonations have occurred within its territories or in international waters. During the [[Cold War]], the Kingdom of Sierra and the United Commonwealth engaged in a nuclear {{W|arms race}}. Although the United Commonwealth consistently outpaced the Kingdom in terms of total nuclear warheads, the Kingdom of Sierra, when included as part of the [[Northern Treaty Organization]], had parity with the United Commonwealth. The Northern Treaty Organization included three other NPT member states, [[France]], [[Germany]], and the [[United Kingdom]]. Several other member states such as [[Astoria]] and [[Superior]], housed nuclear weapons and facilities and were protected under the collective nuclear umbrella of the Kingdom of Sierra.

Since the 1980s, it has signed a number of arms reduction treaties to reduce the number of nuclear warheads in its arsenal, in tandem with the United Commonwealth and other nuclear states. At its peak, the Kingdom had 16,250 nuclear warheads; as of 2022, it has 2,050 nuclear warheads, with 790 operationally ready for strategic and tactical use. The Kingdom of Sierra is a {{W|nuclear triad|triad power}} with strong and comprehensive legs including land-launched nuclear missiles, nuclear-armed submarines, and strategic aircraft with nuclear bombs and missiles. The official policy of the Kingdom of Sierra in terms of {{W|nuclear strategy}} is that it reserve the right to conduct a {{W|first strike (nuclear strategy)|first strike}} and that it maintains its full capability of conducting a {{W|second strike}}. 

===History===

The Kingdom of Sierra began its nuclear weapons and research program during [[Great War II]]. The move was motivated by fear of an emerging arms race with the [[United Commonwealth]]. The research program was headed by the [[Royal Army Corps of Engineers]] of the [[Sierran Royal Army]] and pooled in the collective resources of the Sierran, Astorian, and Superian scientific communities. Dozens of nuclear research, testing, and production sites were constructed over the course of the war and afterwards. These included the {{W|Santa Susana Field Laboratory}}, [[Area 51]], and the [[Dugway Proving Ground]]. In 1960, the [[Royal Atomic Corporation]] and its [[Royal Atomic|subsidiary]] were established to distinguish the civilian use of nuclear energy from the military use of nuclear weaponry.

===Arms reduction===

Beginning in the 1970s, the Kingdom of Sierra began coordinating {{W|arms control|arms reduction}} efforts with other nuclear powers including the United Commonwealth. This stemmed from a mutual desire to halt the nuclear arms race between the world's superpowers and coincided with a period of general {{W|detente}} between the Western and Eastern Blocs. The process was spearheaded by the [[League of Nations]] and culminated in the signage of multiple arms reduction agreements and test ban treaties. The Non-Proliferation Treaty represented the most comprehensive nuclear arms control treaty of the 20th century and designated the Kingdom of Sierra as one of the few recognized nuclear states. The treaty was designed to stop the proliferation and spread of nuclear weapons to non-nuclear states and to encourage the existing nuclear states to gradually decrease their nuclear stockpiles.

===Nuclear arsenal===

===Nuclear policy===

===Nuclear proliferation===

==Chemical weapons==

==Biological weapons==

==See also==

*[[Sierran Crown Armed Forces]]
*[[List of nuclear weapons tests of the Kingdom of Sierra]]
*[[Nuclear power in the Kingdom of Sierra]]
*[[United Commonwealth and weapons of mass destruction]]

{{Sierran Crown Armed Forces}}
[[Category:Kingdom of Sierra and weapons of mass destruction]]
[[Category:Nuclear weapons of the Kingdom of Sierra]]
[[Category:Weapons of mass destruction by country]]