[4] During this deployment, personnel from 1 CER were involved in boarding and detaining SIEV 13, and the subsequent transfer of those aboard to the Christmas Island Immigration Detention Centre.

[6] The rest of the regiment was involved in training and trials of the PackBot military robot (the Scout and Explorer variants) for Australian use.

[6] In July 2009, 1 CER and 5th Battalion, Royal Australian Regiment served as the opposing force during Exercise Talisman Sabre 2009.

[7] In January 2005, the 9 Field Squadron Group provided Disaster Relief and Humanitarian Support in response to the magnitude 7.6 earthquake that struck off Western Sumatra on 26 December 2004.

During this period, members of the regiment provided critical engineering support including water purification to the local population of Banda Aceh.