Coniston massacre
The Coniston massacre, which took place near the Coniston cattle station in the then Territory of Central Australia (now the Northern Territory) from 14 August to 18 October 1928, was the last known officially sanctioned massacre of Indigenous Australians and one of the last events of the Australian Frontier Wars. People of the Warlpiri, Anmatyerre, and Kaytetye groups were killed. The massacre occurred in revenge for the death of dingo hunter Frederick Brooks, killed by Aboriginal people in August 1928 at a place now known as "Yukurru", also known as Brooks Soak.
Clonoe ambush
Three other IRA members — Gerard Harte, Martin Harte and Brian Mullin — had been ambushed and killed by the SAS as they tried to kill an off-duty Ulster Defence Regiment soldier near Carrickmore, County Tyrone. British intelligence identified them as the perpetrators of the Ballygawley bus bombing, which killed eight British soldiers. After that bombing, all troops going on leave or returning from leave were ferried in and out of East Tyrone by helicopter. Another high-profile attack of the East Tyrone Brigade was carried out on 11 January 1990 near Augher, where a Gazelle helicopter was shot down.