In Sept 2021, The M/V Patrick and William participated in Exercise CUTLESS FURY 2021 (CF21) which is a joint, combined, and inter-agency exercise hosted by the Commander Maritime Forces Atlantic (MARLANT).

Exercise CF21 is executed by Commander Canadian Fleet Atlantic (CCFL), with a particular focus on joint maritime tactical warfare in a multi-threat environment. In addition, secondary objectives include supporting tactical development, technical evaluation, and equipment trials, as well as extending good will to Allied navies during port visits to Canadian ports.