Mr. Schmitt has apparently spent his entire career in academia involved in international law, international humanitarian law, use of force issues, and the international law applicable to cyberspace. Quite the warrior. Someone of his ilk passed targeting information including routes and times to the Swiss and you can take a wild ass guess where it went from there, not to mention target restrictions.
Link: https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/196183/daylight-bombing/