The Battle of the Boyne occurred as part of the larger Williamite War in Ireland, which was fought between supporters of the deposed Catholic King James II and those of the Protestant King William III, who had taken the throne in the Glorious Revolution of 1688. The battle was strategically significant and took place on the banks of the Boyne River in Ireland, specifically at a location in County Meath. King William III, also known as William of Orange, sought to secure his rule over England and Ireland, while James II aimed to reclaim the throne he had lost. The armies faced off on July 1, 1690, according to the Julian calendar, which at the time was used in much of Europe.William's forces numbered around 36,000 troops, while James commanded approximately 25,000. The battle unfolded through several phases, with key maneuvers and fierce combat occurring across the terrain. The most decisive moment came when William executed a flanking maneuver that broke through the Jacobite lines, leading to significant casualties among James's troops. The engagement concluded with a clear victory for William, who ultimately pursued James as he retreated to Dublin. This defeat solidified Protestant ascendancy in Ireland and demonstrated the military superiority of William's forces over James's army.