Nine Years' War happened in 1616-09.
Williamite War in Ireland happened on 1689-03-12.
It was highly likely and in the years that followed conflict did happen with the War of Independence and then the Irish Civil War.
Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.Northern Ireland was not always at war in the 20th century. It did not even exist for the first two decades of the 20th century. It's formation caused problems as it created a division in Ireland. Within Northern Ireland itself there were those that were for and against the formation of Northern Ireland. There were problems, but not really a war. It wasn't until the 1960s that trouble really began to happen, and then continued for about 25 years. It was sporadic with various incidents and not outright fighting, typical of a standard war.
Seven Years' War happened in 1756.
Forty Years' War happened in 1385.
Eighty Years' War happened in 1568.
Nine years
Not the Spanish Armada, but a Castilian-French fleet during the Hundred Years War. Several raids were conducted by Castille in English soil during the Hundred Years War. On the other hand, the several Spanish Armadas in the XVI century raid several town in Cornwall, and raised a revolt in Ireland (Nine Years War)
tons of peaple died
Northern Seven Years' War happened in 1563.
from the end of the "9 years war in 1603