View source for Riamese Invasion of the Unhak

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{{Infobox military conflict
| conflict   = Riamese Invasion of the Unhak
| partof     = the [[Second Reunification War of Hoterallia]] and [[Era of Civil Wars]]
| image      = Hoterallian_Bicycle_Infantry_Unhak_(1940).png
| caption    = Hoterallian troops on bicycles advance out of Kakokaminari City.
| date              = {{ubl|{{start and end dates|1940|1|12|1940|2|23|df=yes}}
| ({{Age in years and days|12 January 1940|23 February 1940|sep=and}})}}
| place      = [[Unhak Islands]]
| casus      =
| territory  = Riamese occupation of the Unhak Islands Chain
| result     = Riamese strategic victory
* Riamese military successfully retook Hoterallian occupation islands and islets
Hoterallian tactical victory
* Hoterallian forces stalled enough time for evacuation of the 32nd Division
| combatant1 = {{flagicon|Hoterallia|Imperial}} [[First Empire of Hoterallia|Hoterallia]]
| combatant2        = {{flag|Riamo}}
| commander1        = '''{{flagicon|Hoterallia|Imperial}} [[Hoterallia_Important_Individuals_Directory#The_1961_Edition|Hiroyasu Ishii]]<br>{{flagicon|Hoterallia|Imperial}} [[Hoterallia_Important_Individuals_Directory#The_1961_Edition|Hirohiko Sasaki]]{{WIA}}'''<hr>[[Hoterallia_Important_Individuals_Directory#The_1961_Edition|Hosuke Konako]]<br>[[Hoterallia_Important_Individuals_Directory#The_1961_Edition|Hitoshi Sakata]]<hr>
[[Hoterallia_Important_Individuals_Directory#The_1961_Edition|Kentarō Imai]]
| commander2        = '''{{flagicon|Riamo}} James Watskin<br>{{flagicon|Riamo}} Francis Totten<br>{{flagicon|Riamo}} Hatsune Okamara'''<br>{{flagicon|Riamo}} Szame Holte<br>{{flagicon|Riamo}} Sophy Forthenhall<hr>{{flagicon|Riamo}} Andrew Willings<br>{{flagicon|Riamo}} George Galls
| units1            = {{nowrap|'''{{flagicon|Hoterallia|Imperial}} NEA Group''}}
*{{flagicon|Hoterallia|Imperial}} 32nd Division
**{{flagicon|Hoterallia|Imperial}} 45th Infantry Regiment
<hr>'''{{flagicon|Hoterallia|Imperial}} 2nd Naval Landing Force'''
<hr>{{nowrap|'''{{flagicon|Hoterallia|Imperial}} Home Fleet'''}}
* 2nd Fleet
| units2            = {{flagicon|Riamo}} III Corp
| strength1         = 1,500 troops active in active combat (90,000 in total)<ref name=":Fall of Unhak">Kazuhiro, Tanaka; (2001). ''The Fall of Unhak''. Dai-Minato: Fuuka Publishing.</ref><br>153 aircraft<br>510 artillery pieces<br>110+ anti-tank and anti-aircraft guns<ref name=":Modern Library">Allen, Louis. ''Unhak 1940–1945: Revised Edition'', Guri: The Modern Library, 2013.</ref><br>160+ AFVs<br>15,400+ motor vehicles<ref name=":Modern Library"></ref>
| strength2     = 64,000 troops<ref name=":burning">Smith, Colin (2006). Unhak Burning. Dai-Minato: Fuuka Publishing.</ref><br>699 aircraft<br>71 fortress guns<ref name=":Fall of Unhak">Kazuhiro, Tanaka; (2001). ''The Fall of Unhak''. Dai-Minato: Fuuka Publishing.</ref>{{efn|Over 50 of the fortress guns were built by the Hoterallians during and after the Great War, all of which were captured at the start of the invasion.}}<br>200+ tanks<br>3,500+ trucks<br>100+ motorized vehicles<br>2,600+ motor vehicles
| casualties1       = '''817'''<br>312 killed or died of wounds<ref name=":Fall Hoter">Stille, Mark (2016). [https://i.imgur.com/LJrd3HN.jpg/ ''Unhak 1940: The Fall of Hoterallia's Empire in the East'']. Bloomsbury Publishing. Retrieved October 22, 2017.</ref><br>400 wounded<br>57 captured<ref name=":Fall Hoter">Stille, Mark (2016). [https://i.imgur.com/LJrd3HN.jpg/ ''Unhak 1940: The Fall of Hoterallia's Empire in the East'']. Bloomsbury Publishing. Retrieved October 22, 2017.</ref>
| casualties2    = '''2197'''<br>197 killed or died of wounds<br>1957 (at least) wounded<br>43 captured<ref name=":Modern Library"></ref><br>47 tanks destroyed<br>Over 1,000 motorized vehicles stolen or broken
| campaignbox       = 
| notes            = {{notelist}}
}}

The '''Riamese Invasion of the Unhak''' was a short undeclared military confrontation between [[First Empire of Hoterallia|Hoterallia]] and [[Riamo]] in the Unhak Islands Chain. It was dominated by {{wp|land battles}} between Riamese army units and the Imperial Hoterallian Army, with minor skirmishes at the beginning of the invasion between the Riamese army units and the Hoterallian Northern Expeditionary Army Group. 

The Riamese had air and naval supremacy from the opening days of the invasion, allowing for a fruitful logistics network to exist from the first day of the operation, and ultimately giving the Riamese enough momentum to break through heavily fortified local defenses.

The operation is notable for the Hoterallian use of {{wp|bicycle infantry}}, which allowed troops to carry more equipment and swiftly move through thick jungle terrain. The Riamese units, equipped with demolition charges, destroyed over a hundred bridges during the retreat, yet this did little to delay the Hoterallian. With swift movements, the Hoterallian 45th Infantry Regiment delayed the Riamese long enough for the 32nd Division to evacuate the island chain.

After the invasion, the Riamese resumed control of their previously owned territories and several islands that the Hoterallian lost during the invasion.

==Background==
===Hoterallia===
{{main|Second Reunification War of Hoterallia}}

By 1940, Hoterallia had been on its downfall politically as the Empire was entering into a state of [[Second Reunification War of Hoterallia|civil war]].<ref name=":Fall Hoter"></ref> Due to the political turmoil, the Empire was forced to withdraw all of its troops from outside the mainland to return home and reunify the homeland.<ref name=":Forgotten">M, Klemen (1999–2000). [https://i.imgur.com/LJrd3HN.jpg/ ""Fracturing of An Empire" The landing on Unhak, on January 12th, 1940"]. ''Forgotten Campaign: The Unhak 1940''.</ref> One of the forces that got withdrawn was the 32nd Division and its mixed brigades guarding the Unhak Islands Chain.

The island chain had been under the attention of both the Hoterallian and Riamese due to its geographical location and bountiful natural resources.<ref name=":burning"></ref> The islands had been under the Hoterallian influences since the late 1800s after the [[Unhak Campaign|Hoterallian campaign to capture the chain]].<ref name=":burning"></ref> Shortly after the [[Great War (Anteria)|Great War]], the chain was split between the Riamese and Hoterallian but the Riamese was still bitter about the defeat during the Great War so plans to reinvade the chain were made. This troop build-up was noticed by the Hoterallians, so an immediate evacuation was given to the 32nd Division, and plans to stall the invading forces were given to the 45th Infantry Regiment.<ref name=":Forgotten"></ref>

As the Riamese started to invade, the Hoterallian had over 100 tanks, many of which were light tanks and tankettes, these tanks were new models, including the {{wp|Type 4 Ke-Nu light tank|Type 2 ''Kaminari light tank''}}, {{wp|Type 92 Heavy Armoured Car|Type 90 ''Kinzoku Kiheitai''}}, {{wp|Type 97 Te-Ke tankette|Type 2 ''Raifu tankette''}} and {{wp|Type 2 Ke-To light tank|Type 2 ''Kinma light tank''}}. In addition, they had nearly 150 aircraft available. As well as many well-maintained artillery pieces, anti-tank and anti-aircraft guns, and over 15,000 motor vehicles and bicycles.<ref name=":Forgotten"></ref>

===Riamo===

==Aftermath== 

The invasion would allow the [[Riamese Navy]] to hold control to the Unhak Sea, as well as the western entrance to the Nostrian, setting the stage for Riamese dominance of the seas for the next 2 decades.

Furthermore, the conflict became the precedent of a generation-long era of anti-riamese sentiment throughout the archipelago, which made it difficult for [[Riamo]] to hold effective control over the islands.

==References==
{{Reflist|30em}}

[[Category:Anteria]]
[[Category:Hoterallia]]
[[Category:Riamo]]