Petty Officer 2nd Class Johnathan Christner, assigned

Petty Officer 2nd Class Johnathan Christner, assigned to Commander, Task Group 56.1 (CTG 56.1), Explosive Ordnance Disposal Mobile Unit One, embarked aboard RFA Lyme Bay (L 3007), checks his dive computer while diving with a Mk-16 underwater breathing apparatus during UK/US Mine Countermeasures Exercise 17-1. The bilateral exercise serves to enhance cooperation, mutual MCM capabilities and interoperability between the U.S. and UK Naval forces in ensuring free flow of commerce, freedom of navigation and long-term regional security. CTG-56.1 conducts mine countermeasures, explosive ordnance disposal, salvage diving, and force protection operations throughout the U.S. 5th Fleet area of operations. (U.S. Navy Combat Camera photo by Petty Officer 2nd Class Tyler Thompson)