James Stavridis : Swedish media reported undersea vessel , possibly Russian , off coast . Comment: Swedish Navy searching , but rocky coast floor can hide signals . For a start , anti-submarine warfare is complex and very difficult to execute properly . He says Sweden not NATO member , but may seek help . Navy , Air Force had budget cuts . Stavridis : NATO should offer to assist , especially if it turns out a vessel is in distress .
James Stavridis : Swedish media reported undersea vessel , possibly Russian , off coast . Comment: Swedish Navy searching , but rocky coast floor can hide signals . He says Sweden not NATO member , but may seek help . Navy , Air Force had budget cuts . Stavridis : NATO should offer to assist , especially if it turns out a vessel is in distress .