Urrunaga landings

The Urrunaga landings were several amphibious targetting the Teutonic-occupied city of Urrutia in southwestern Boaga during the Grand Campaigns. The landings were carried out on 21 November 1923 by the Tiperyn Realm Defence in concert with a Tiberian land offensive from the west. The operation was Tiperyn's only mass assault of a contested beachhead during the war and ultimately resulted in a breakout on the Tiberian front and the liberation of Boaga.

The amphibious landings took place along a 16 kilometer stretch of beach centred on the city of Urrutia. The entire landing zone was split into three sectors: Antina, Biena, and Danyela. Biena was focused on beach surrounding the opening to Urrutia's harbour while Antina and Danyela were on the left and right flanks of the town respectively along relatively sparsely populated areas of coast. The assaults were pre-empted by a three hour long naval bombardment and one of the first examples of Tiperyn naval bombers attacking ground targets. The landings initially involved four regimental groups of the Realm Guard and one brigade of the Fleet Marine Corps (Tiperyn) who landed between 6:00 a.m. and 9:00 a.m.

The landings at the city of Urrutia itself on Biena Sector were failures, with Teutonic machine guns, howitzer and mortars regrouping in the time between the pre-landing bombardment and the first wave. The elements of the №23 Tipslan Rifleer Regimental Group and 4th Marine Brigade that landed at Biena Sector were almost immediately pinned down, taking almost 60% casualties across the entire sector and as high as 90% in some concentrated areas. Meanwhile, the №14 Tipslan Mechanicalized and №2 Idlerein Lorried Rifleers quickly broke through at Antina Sector, only encountering light resistance along a beachhead that was sparsely populated and only defended by a single rifle company with no machine guns. The №33 Hawkreath Mountaineers landing at Danyela Sector also went mostly according to plan, although they encountered marginally more resistance as a machine gun platoon backed by a heavy mortar section briefly stalled the advance of the first wave off of the beach. Together, forces that landed at Antina and Danyela Sectors proceeded overland towards Urrutia to support in its capture. The ensuing Battle of Urrutia would last for three weeks, turning into a prolonged urban battle that would cost thousands of lives before Tiperyn forces secured the city.

Crown Alliance order of battle
The Crown Alliance forces landing at Urrunaga included four Tiperyn Realm Guard Regimental Groups and one Tiperyn Marine Brigade (both roughly division-sized elements) under the overall command of IV Corps (under Lieutenant General Olrik Zuidema) and Expeditionary Theatre—Agrana (under Captain General Rombert DeBruin). In total, 45,000 soldiers and marines constituted the forces that would land on the first day of the operation.

Antina Sector
 * [[Image:VIII_corps_(2).svg|25px]] №14 Tipslan Mechanicalized Regimental Group under Commodore Folmer Sikma equipped primarily as armoured car exploitation forces. Sikma had tactical command of Antina Sector.
 * 20th Mechanicalized Regiment (Oerwacht)
 * 4th Mechanicalized Regiment (Oerwacht)
 * 12th Lorried Cannoneer Regiment (Ambrosia)
 * [[Image:XIII_corps.svg|25px]] №2 Idlerein Lorried Rifleer Regimental Group under Commodore Edme Fisser equipped as truckborne infantry.
 * 5th Lorried Regiment (Kaltyk)
 * 12th Lorried Regiment (Njiboarn)
 * 19th Lorried Regiment (Njiboarn)
 * 11th Cannoneer Regiment (Njiboarn)

Biena Sector
 * [[Image:I_Corps.svg|16px]] №23 Tipslan Rifleer Regimental Group under Commodore Dedmer Idema equipped as foot infantry.
 * 67th Rifleer Regiment (Ambrosia)
 * 55th Rifleer Regiment (Ambrosia)
 * 2nd Rifleer Regiment (St—Danyelaparokie)
 * 3rd Cannoneer Regiment (Njiboarn)
 * [[Image:V_corps.svg|21px]] 4th Marine Brigade under Brigadeer Abram Terpstra equipped as foot infantry. Terpstra had tactical command of Biena Sector.
 * 10th Marine Regiment
 * 11th Marine Regiment
 * 12th Marine Regiment
 * 4th Gunnery Regiment

Danyela Sector
 * [[Image:XI_Corps_WW1.svg|25px]] №2 Hawkreath Mountaineer Regimental Group under Commodore Alton Kimberely equipped as foot infantry. Kimbereley had tactical command of Danyela Sector.
 * 31st Mountaineer Regiment (Hawkreath)
 * 34th Mountaineer Regiment (Nottingford)
 * 33rd Mountaineer Regiment (Hawkreath)
 * 17th Cannoneer Regiment (Wexton)

Teutonic Alliance order of battle
The Teuton forces stationed in and around the city of Urrutia came under the overall command of the 4. Armee — which was responsible for the defense of Teuton-occupied Western Boaga — under Generaloberst Reinhard Thomas von Kreisau. However, Kreisau was many hundreds of kilometers north of Urrunaga landings on the day at 4. Armee headquarters. Tactical command of the defense came under the command of Generalleutnant Uwe Aigner-Waibel, commander of the 120. Schützen-Division. They numbered 23,000 men overall.


 * [[Image:93._Infanterie-Division_(Wehrmacht).svg|25px]] 120. Schützen-Division under Generalleutnant Uwe Aigner-Waibel equipped as foot infantry. Slightly understrength.
 * 91. Schützen-Brigade
 * 141. Schützen-Brigade
 * 120. Feldartillerie-Brigade
 * 129. Hussaren-Regiment


 * [[Image:XXII_Corps_WW1.jpg|25px]] 10. Hussaren-Regiment under Oberst Nils Weiz equipped as horse cavalry.

Aftermath
The Urrunaga landings were the largest single amphibious operation against a contested beachhead of the Grand Campaigns. They resulted in the securing of a beachhead in southwest Boaga and the eventual liberation of the city of Urrutia after a three-week-long urban battle. Tiperyn forces landed near Urrutia broken out of the Urrutian pocket on 9 December and would link up with Tiberian armies advancing from the west on 23 December.

Ultimately, the amphibious assaults against the most heavily contested areas of the beachhead were a failure, with the bulk of the №23 Tipslan Rifleers and 4th Marine Brigade being rendered combat ineffective. However, the landings on the relatively uncontested beachheads proved to be successful, with motorized infantry and cavalry forces quickly securing landing sites for follow-on forces that would land the next day and moving into Urrutia. The Crown Alliance victory came down to a number of factors, including the simulatenous land offensive conducted by Tiberian forces in the west that tied down the majority of the teutonic Fourth Army. Additionally, the Teutonic 120th Division was largely caught by surprise and was contained mostly within the built up area of Urrutia. Prior to noon, Teutonic forces were largely unaware of significant landings at Antina and Danyela sectors, being primarily concerned with the ineffective landings at Biena sector.