 We worked with the Swedish divers and worked on emergency procedures for unconscious diver and buddy breathing using the Shadow X system and the Mark 25 system. The Swedish Shadow X diver apparatus and the Mark 25 Marine Corps apparatus. Diving with those emergency procedures allows us to dive with each other and be able to actuate the proper emergency procedures as required for each system so there's no problems when it comes to diving in the open ocean when we are joint operations. It allows us to get a cross-pollination of the equipment understanding that there's multiple different apparatus. They generally work the same but understand there's slight variances to where you are able to function with other foreign nations to help strengthen our effectiveness throughout the world.