the total Australian troop strength to 7,672 combat troops, its highest level during the war. This increase effectively doubled the combat power available to the task force commander. On 1 March 1968 the Australian and New Zealand governments agreed to merge the New Zealand rifle companies into one Australian battalion which resulted in both New Zealand companies integrating with A, B, and C Companies of 2 RAR to become 2 RAR/NZ (ANZAC). With a total of five rifle companies it was stronger than the standard Australian battalion which only had four. New Victor and Whisky companies from RNZIR were again attached to subsequent 4 RAR and 6 RAR rotations during later tours. The ANZAC battalions were commanded by an Australian officer, with a New Zealand officer appointed as deputy commander. All of the New Zealanders were regular soldiers. In late 1968 a New Zealand Special Air Service troop was also attached to the Australian SAS Squadron. New Zealand strength peaked at 552 troops in 1969. At its height 1 ATF numbered over 8,000 men, including three infantry battalions, armour, artillery, engineers, logistics and aviation units in support. Although primarily operating out of Phuoc Tuy, the 1 ATF was also available for deployment elsewhere in III Corps and with the province progressively coming under control, 1968 saw the Australians spending a significant period of time conducting operations further afield. 1 ATF was subsequently deployed astride infiltration routes leading to Saigon in order to interdict communist movement against the capital as part of Operation Coburg during the 1968 Tet Offensive and later during the Battle of Coral–Balmoral in May and June 1968. At Fire Support Bases Coral and Balmoral the Australians had clashed with regular People's Army of Vietnam (PAVN) and VC main force units operating in battalion and regimental strength for the first time in near conventional warfare, ultimately fighting their largest, most hazardous and most sustained battle of the war. During 26 days of fighting Australian casualties included 25 killed and 99 wounded, while PAVN/VC casualties included 267 killed confirmed by body count, 60 possibly killed, seven wounded and 11 captured. Later, from December 1968 to February 1969 two battalions from 1 ATF again deployed away from their base in Phuoc Tuy province, operating against suspected communist bases in the Hat Dich area, in western Phuoc Tuy, south-eastern Bien Hoa and south-western Long Khan provinces during Operation Goodwood. From May