Tennen Rishin Ryū Jūjutsu Choke
Tennen Rishin Ryu, the samurai lineage made famous by Kondo Isami of the legendary Shinsengumi is a comprehensive system of sword, staff, small-tool, and empty-handed techniques.
Defending against an overhead slash or strike when you are inadvertently disarmed may require a sacrifice fall or sutemi. Turning that apparent disadvantage into victory is possible.
Notice how the choke is found during the sutemi and incorporates the opponent's body armor.