Battle of Saint Laurence

Republican Invasion of Rubrum
HMS Warrior sinks a Republican Ironclad ship
Date 20 April - 22 April 1863 Location Upper Rubrum, Quebecois, Result Royalists Victory Republican forces in Quebecois and Upper Rubrum isolated
Belligerents
Royalists United Kingdom Western Erebonia Gallia-Bruhl	Republicans Republic of Concordia Atlantic Federation
Commanders and leaders
Drew Anders Edward Wallace	Kian Zachary Granbury Charles de Santa
Units involved
11th Royal Fleet 3rd Fleet	Fleet of the Northern Frontier 4th Atlantic Fleet

The Battle of Saint Laurence (20 April - 22 April 1863) took place at the Gulf of Saint Laurence, which lead to the inner parts of Rubrum and the Saint Laurence River. The battle was fought primarily between the Royal Navy and the Royal Gallian Navy against the Republican Concordian Navy and the Atlantic Federal Navy.

The news of the Lucis Empire intervening on its colonies in Amerigonna took the Concordians and Federals by surprise. Initially, the navies of the said armies were to blockade the Gulf of Saint Laurence to disillusion Great Lucis to reinforce the colonies. Instead, the Royal Navy, along with the Royal Gallian Navy and some ships off the Royal Erebonian Navy chose to attempt to destroy the blockade and reinforce the Royalists forces inland.

The Republican and Federal Navies fought back in hopes of tarnishing the reputation of the Royal Navy, which was the most power naval force in the world during the war. However, the Royal Navy, under the command of Admiral Drew Anders successfully destroyed both the Republican and Federal Navies at Saint Laurence, prompting the Royalists forces to finally land near Quebecois City.

The Battle caused the Republican and Federal Forces inland to be cut-off from supplies and reinforcements throughout the year, until the remaining troops surrendered on 18 December 1863.