The German armed forces were withdrawing an entire armoured infantry platoon from a NATO mission in Lithuania and the troops are due to return to Germany on Thursday, following suspicions of serious misconduct.
The Military Counterintelligence Service (MAD) was also involved in the investigation.
Suspicions had arisen in the course of the investigations of further irregularities, with a shortage of ammunition running to the triple digit range.
Investigations have already revealed initial suspicions of criminal offences from sexual assault to insults that could be based on racism, coercion and extremist behaviour.
Right-wing extremist and anti-Semitic songs were sung at a party in a hotel at the end of April, according to the Spiegel news magazine, which first reported on the case.
An alleged sexual assault was also filmed.