Boeing P-8 Poseidon arrives at Spangdahlem

A Boeing P-8 Poseidon arrives on the flightline of Spangdahlem Air Base, Germany, June 5, 2015. The aircraft arrived at Spangdahlem to support BALTOPS 2015, an annual multi-national exercise designed to increase interoperability and promote friendship with participating nations. The crew aboard will conduct training on anti-submarine and anti-surface warfare throughout the duration of the exercise. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)

A Boeing P-8 Poseidon arrives on the flightline of Spangdahlem Air Base, Germany, June 5, 2015. The aircraft arrived at Spangdahlem to support BALTOPS 2015, an annual multi-national exercise designed to increase interoperability and promote friendship with participating nations. The crew aboard will conduct training on anti-submarine and anti-surface warfare throughout the duration of the exercise. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)

A Boeing P-8 Poseidon taxis on the flightline of Spangdahlem Air Base, Germany, June 5, 2015. The aircraft arrived to support 16 other countries involved in BALTOPS 2015, a multinational maritime-focused exercise designed to enhance flexibility and interoperability, as well as demonstrate resolve among allied and partner forces to defend the Baltic region. The exercise will involve maritime, ground, and air forces to strengthen combined response capabilities necessary to ensure regional stability. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)

A Boeing P-8 Poseidon taxis on the flightline of Spangdahlem Air Base, Germany, June 5, 2015. The aircraft arrived to support 16 other countries involved in BALTOPS 2015, a multinational maritime-focused exercise designed to enhance flexibility and interoperability, as well as demonstrate resolve among allied and partner forces to defend the Baltic region. The exercise will involve maritime, ground, and air forces to strengthen combined response capabilities necessary to ensure regional stability. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)

Members of the U.S. Navy de-board a Boeing P-8 Poseidon that arrived on the flightline of Spangdahlem Air Base, Germany, June 5, 2015. The aircraft, which departed from Naval Air Station Jacksonville, Fla., is in Europe to participate in BALTOPS 2015, an annual allied interoperability exercise that will allow ground, maritime and air forces from participating nations to demonstrate air defense, maritime interdiction, anti-subsurface warfare, mine countermeasures, and amphibious operations in a joint environment to ensure regional security. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)

Members of the U.S. Navy de-board a Boeing P-8 Poseidon that arrived on the flightline of Spangdahlem Air Base, Germany, June 5, 2015. The aircraft, which departed from Naval Air Station Jacksonville, Fla., is in Europe to participate in BALTOPS 2015, an annual allied interoperability exercise that will allow ground, maritime and air forces from participating nations to demonstrate air defense, maritime interdiction, anti-subsurface warfare, mine countermeasures, and amphibious operations in a joint environment to ensure regional security. (U.S. Air Force photo by Senior Airman Gustavo Castillo/Released)