The Khemorex Klinzhai are a rebel fleet operating within Klingon space. Their strength, exact location and leadership structure are unknown, but their technology seems to be equivalent to the Klingon Defense Force.
The Khemorex Klinzhai centers their philosophy and recruiting strategy on the idea that the alliance with the Federation has weakened the Klingon culture and stopped the Klingon Empire from expanding as it otherwise was destined for. The level of advancement in their ships, technology and tactics suggest that the movement was born either before or immediately following the first Khitomer conference.
There is speculation that the Khemorex Klinzhai is considering (or has already) established relations with the Typhon Pact.