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Tag Archives: Light Infantry


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The Establishment of the Irish Legion

The Irish Legion, a light infantry regiment in service of the French Imperial Army for an anticipated invasion of Ireland, is established on August 31, 1803, in Morlaix, France. Bernard MacSheehy, an Adjutant-General in Napoleon‘s army, is assigned to form the regiment. Later expanded to four battalions and a depot, the legion wins distinction in the Walcheren Expedition, the Peninsular War, and the German Campaign of 1813. Following the disbandment of the foreign regiments in 1815, the regiment’s personnel are distributed.

The first officers include members of the Society of United Irishmen who had fled to France in 1797. It also includes Irishmen who had been taken during the Irish Rebellion of 1798 who were freed during the short peace effected by the Treaty of Amiens on condition of exile, and who had sailed for France in June 1802. The treaty breaks down in May 1803 with the start of the War of the Third Coalition. As a part of Napoleon’s planned invasion of the United Kingdom in 1803–05, the Irish Legion is to provide the indigenous core for a much larger invasion force of 20,000 earmarked to take Ireland, known as the Corps d’Irlande.

The purpose of the Legion is to align the Irish hearts to the French cause in the imminent invasion of Ireland. General Charles-Pierre Augereau is ordained to lead the invasion and wants Irishmen to serve in his army. However, the Battle of Cape Finisterre and the Battle of Trafalgar in 1805 make a safe sea crossing uncertain at best, and Napoleon is forced to abandon his plans for Ireland. He shifts his focus towards Austria and Eastern Europe and launches the Austerlitz campaign in late 1805. The legion remains on the French coast on garrison duty and coastal defence.

The Legion is eventually expanded from a battalion to a regiment and there is greater demand for more soldiers. These make a varied group; some are former United Irishmen who were taken prisoner in 1798-99 and then freed during the peace that followed the Treaty of Amiens (1802–03), some had been impressed into the Royal Navy and deserted, and some were German or Polish. While the Legion is stationed at the Fortress of Mainz in 1806, they are joined by 1,500 Poles and many Irishmen who were sent in 1799 to serve the King of Prussia. Its headquarters is at ‘s-Hertogenbosch, known to the French as Bois-le-Duc, in what is then the Kingdom of Holland.

The Irish Legion has its own flag, and in December 1805 receives an eagle. The Legion is the only group of foreign soldiers in the French military to whom Napoleon ever gives an eagle. Wearing a green uniform, its maximum size is about 2,000 men.

The regiment is greatly assisted from 1807 by Napoleon’s war minister Marshal of France Henri Clarke, who was born in France to Irish parents and whose family had close links to the ancien regime Irish brigade that had served the kings of France. He and his father had served in Dillon’s Regiment, and his mother’s father and several uncles served in Clare’s Regiment. In August 1811, the Legion is renamed the 3e Regiment Etranger (Irlandais) (3rd Foreign Regiment (Irish)), but throughout the unit’s history it is always referred to as the Irish Regiment.

The regiment divides in loyalty during the “Hundred Days,” and is officially disbanded by King Louis XVIII on September 28, 1815. Its flags are burned and its eagle, like many, disappears.

(Pictured: Regimental Colours of the Irish Legion (Obverse))


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The Battle of Vinegar Hill

The Battle of Vinegar Hill, an engagement during the Irish Rebellion of 1798, takes place on June 21, 1798 when over 13,000 British soldiers launch an attack on Vinegar Hill outside Enniscorthy, County Wexford, the largest camp and headquarters of the Wexford United Irishmen. It marks a turning point in the rebellion, as it is the last attempt by the United Irishmen to hold and defend ground against the British military. The battle is actually fought in two locations: on Vinegar Hill itself and in the streets of nearby Enniscorthy.

By June 18, the British have surrounded County Wexford with between 13,000 and 18,000 troops and are ready to pour into Wexford to crush the insurgency. The United Irishmen leadership issues a call to all its fighters to gather at Vinegar Hill to meet the army in one great, decisive battle. The number assembled is estimated at between 16,000 and 20,000, but the majority lack firearms and have to rely on pikes as their main weapon. The camp also includes many thousands of women and children who are staying there for protection against the rampaging military.

The British plan, as formulated by General Gerard Lake, envisages the complete annihilation of the United Irishmen, women and children by encircling the hill and seizing the only escape route to the west, the bridge over the River Slaney. Lake divides his force into four columns to accomplish this. Three columns, under Generals David Dundas, James Duff and Francis Needham are to assault Vinegar Hill, while the fourth column, under General Johnson, is to storm Enniscorthy and its bridge.

The battle begins shortly before dawn with an artillery bombardment of Irish positions on the hill. Advance units quickly move against the United Irishmen outposts under cover of the bombardment and move artillery closer as forward positions are secured. The tightening ring forces the United Irishmen into an ever-shrinking area and increases exposure to the constant bombardment, including new experimental delayed-fuse shells resulting in hundreds of dead and injured. At least two mass charges are launched by the United Irishmen which fail to break the lines of the military and the situation on Vinegar Hill soon becomes desperate for the United Irishmen.

Meanwhile, a detachment of light infantry under the command of General Johnson attacks the town of Enniscorthy but meets with fierce resistance. Buildings in the town have been fortified and the initial attack is driven back with the loss of munitions and men. A second attack commences with reinforcements including cavalry, which retake the lost cannon and ammunition while also incurring considerable casualties. The United Irishmen are slowly driven out of the town but manage to hold the Slaney bridge and prevent the British from crossing.

When British troops crest the eastern summit of Vinegar Hill, the rebels begin to slowly withdraw through a gap in the British lines later known as “Needham’s Gap”, so-named because the late arrival of General Needham’s troops prevented a total encirclement of the hill. Although the bulk of the United Irishmen army escape, many are left behind and killed in the routing phase of the battle from both cavalry and infantry attack, but also from the advanced field guns which are switched to grapeshot to maximize casualties.

In addition to conventional casualties, there are also instances of British troops raping the women accompanying the United Irishmen and in Enniscorthy, United Irishmen wounded are burned to death when soldiers set fire to a building used as a casualty station. These atrocities may have been perpetrated in revenge for the execution by the United Irishmen of numbers of mostly Protestant loyalist prisoners of war in the preceding weeks. The United Irishmen abandon much of the supplies they had taken from surrounding areas, and thirteen cannons are captured by the British, a number of which had been taken from the British forces previously.

Meanwhile, the bulk of the United Irishmen force streams uninterrupted towards the Three Rocks camp outside Wexford and, following the decision to abandon the town, split into two separate columns in a new campaign to spread the rebellion beyond Wexford. One immediately sets out to the west, the other northwards towards the Wicklow Mountains to link up with General Joseph Holt‘s forces.

The defeat is therefore not the immediate crushing blow to the Wexford United Irishmen that it has falsely been depicted as, but it does alter the course of the fighting as continued resistance now takes the form of mobile warfare, raids, and large scale, guerilla-type operations.

Casualties for the United Irishmen have been variously reported, with estimates ranging from 400 to around 1,200. Kevin Whelan estimates a figure of between 500 and 1,000 including camp followers, while Archibald McLaren, a British soldier eyewitness, writes that the United Irishmen casualties total about 1,200 men. British casualties are around one hundred.