'Nussknacker' was a German operation by ex-Italian torpedo boats of Korvettenkapitän Wirich von Gartzen’s 10^th Torpedoboots-Flottille to undertake gunfire bombardments of the Corsican port of Bastia (14/19 February 1944).

During this undertaking TA 23 was in action three times, TA 24 five times, TA 25 one time, TA 26 two times, TA 27 four times, and TA 28 three times.