Warramunga made a significant impact on terrorist and criminal organisations by denying them approximately $2.17 billion in funding from illegal narcotics, including 31.8 tonnes of hashish and two tonnes of heroin from 16 smuggling vessels. 

While deployed, Warramunga conducted counter-terrorism and maritime security operations as part of Combined Task Force 150.

She also regularly operated as part of the multi-national coalition of Combined Maritime Forces, a 32-nation partnership established to defeat terrorism, prevent piracy, encourage regional co-operation and promote a safe maritime environment.

“I congratulate the professional men and women in Warramunga who have worked so hard to achieve this unprecedented outcome. Your commitment and focus has made a substantial and lasting difference," said Defence Minister Marise Payne who, along with Chief of Navy Vice Admiral Mike Noonan, greeted the crew and their families upon the return of the Anzac Class frigate.