Australian HMAS Ballarat joins USS Carl Vinson CSG during a maritime exercise.

According to information published by the Royal Australian Navy on October 25, 2021, HMAS Ballarat supported the joined the USS Carl Vinson carrier strike group conducting flight operations during the Maritime Partnership Exercise 2021 (MPX21) in the Indian Ocean.
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Anzac-class frigate HMAS Ballarat and Ticonderoga-class guided-missile cruiser USS Lake Champlain from the US Carrier Strike Group (Picture source: U.S. Department of Defense)

As well as the US Navy, the Anzac class frigate also worked with partnering nations Japan and the United Kingdom during MPX21 in complex multi-domain training, in the Bay of Bengal from October 14-18.

HMAS Ballarat (FFH 155) is an Anzac-class frigate of the Royal Australian Navy (RAN). The frigate was laid down in 2000 and commissioned into the RAN in mid-2004.

The Anzacs are based on Blohm + Voss' MEKO 200 PN (or Vasco da Gama-class) frigates, modified to meet Australian and New Zealand specifications and maximise the use of locally built equipment. Each frigate has a 3,600-tonne (3,500-long-ton; 4,000-short-ton) full load displacement.

The ships are 109 metres (358 ft) long at the waterline, and 118 metres (387 ft) long overall, with a beam of 14.8 metres (49 ft), and a full load draught of 4.35 metres (14.3 ft).

USS Carl Vinson (CVN-70) is the United States Navy's third Nimitz-class supercarrier. The ship was launched in 1980, undertook her maiden voyage in 1983, and underwent refuelling and overhaul between 2005 and 2009.