1970
- 30 April - 2 UDR and 6 UDR provide 400 soldiers to assist the regular British Army in an 8-Brigade operation to intercept the movement of munitions from the Republic of Ireland across the border with Armagh, Tyrone and Fermanagh.
- 28 June-19 July - GOC NI orders the first call-out of the entire regiment to assist the regular army due to civil disturbance. 80% of the regimental strength turns out for the duration of the call-out.
Read more about this topic: Timeline Of Ulster Defence Regiment Operations