A Royal Canadian Air Force CF-188 Hornet from 409 Tactical Fighter Squadron, Canadian Forces Base Cold Lake is aerial refueled by a KC-130 Hercules from Marine Aerial Refueler Transport Squadron 234, Marine Aircraft Group 41, 4th Marine Aircraft Wing, during an aerial refueling training mission in the air over Cold Lake, Canada, June 17, 2019, in support of Sentinel Edge 19. MARFORRES squadrons participate in SE19 to both complete annual training requirements and to increase unit readiness and proficiency. (U.S. Marine Corps photo by Sgt. Andy O. Martinez)