Complex sentence: The king offered a non-confrontational retreat to German ambassador Manfred Freiherr von Killinger, but the Germans considered the coup "reversible" and tried to turn the situation around by military attacks.
Split into simpler sentences: The king offered a non-confrontational retreat to German ambassador Manfred Freiherr von Killinger. But the Germans considered the coup "reversible" and tried to turn the situation around by military attacks.