for these incidents have taken place over the north sea the baltic sea and the black sea if they've involved western and russian warships and really terry aircraft. and military grade. reserve action aircraft over the north sea were filmed by the british royal air force. more and more nato aircraft are taking part in interception missions including going to scare planes. germany is making a substantial contribution to nato as program to help protect the baltic states. but such busy skies are not without risk. for all those imagine what would happen if for example a russian military aircraft crossed the border there by accident or deliberately and was shot down by a western or american forces like. that there's a big danger such an incident could lead to an escalation that quickly spirals out of control and if. so the tensions present here in europe today are a major cause for concern. see a bidding cliff. these u.s. b. fifty two bombers are preparing to take part in a training exercise. in the baltic states. many see this deployment as a message to russia. and it isn't the only message. we'v