These were united into a single body known as the Ulster Volunteers in January 1913.
His father had served in the Ulster Volunteers under Edward Carson.
They set up a militia called the Ulster Volunteers and imported 25,000 rifles from Germany.
Wilson was delighted by the Ulster Volunteers (now 100,000 strong) when he watched them drill.
Wilson was also leaking information to the Ulster Volunteers.
To prevent this from happening, the Ulster Volunteers were formed in 1913 under the leadership of Edward Carson.
Unionist resistance was immediate with the formation of the Ulster Volunteers.
Civil war looked likely to break out between the Ulster Volunteers and the nationalist Irish Volunteers.
In 1911 some Orangemen began to arm themselves and train as a militia called the Ulster Volunteers.
The Ulster Volunteers contributed thirteen additional battalions to the Division.