In October 2015, "Whitehorse" deployed with off the Pacific coast of North America as part of Operation Caribbe. During their deployment, "Whitehorse" performed one seizure of a smuggling vessel. In total, seven seizures were performed interdicting a total of nearly of cocaine. The two ships returned to Canada in December. In 2018, "Whitehorse" deployed south into the eastern Pacific Ocean as part of Operation Caribbe alongside sister ship . The two ships participated in the intercept and seizure of of illegal drugs. "Edmonton" and "Whitehorse" returned to Esquimalt on 3 May. In June and July 2018, "Whitehorse" and sister ship were deployed off the coast of southern California while taking part in RIMPAC 2018. "Whitehorse" and "Yellowknife" both deployed to the Pacific as part of Operation Caribbe on 15 March 2019. The two ships returned to Esquimalt on 16 May, having participated in the interception of of cocaine and of illicit marijuana. "Whitehorse" deployed from Esquimalt with "Nanaimo" on 10 February 2020 for Operation Caribbe off western Central America for three months. The two ships were recalled from their mission early on 19 March due to the COVID-19 pandemic.