No, I just want to support Dr. Lerhe and say that the control issue is a very defined term in a military context, but don't get hung up on it. The responsibility for the actions of that unit, whether it's a ship or an aircraft, always lies with the commander and that commander will always have direct contact with his national command and control authority.
If there's ever a question, it reverts to the national authority and the only problem would be in a short-fused, short-reaction time scenario, and again, it reverts to the commander on the scene to make the decision. These are constructs that we put in place for planning purposes. It helps to sort out and organize who does what to whom and who makes what day-to-day decisions, but in the crisis scenario, the commander always has the final control authority.