Federation Nebula class starship.  Starfleet registry NCC-71805.  Second starship to bear the name.  She served in Picard's armada to blockade Romulan supply ships supplying the Duras family forces during the Klingon civil war of 2367-68 ("Redemption, Part II" TNG).  Also, in 2368, Commander Turock T'Kill was assigned as first officer of the Endeavor for a period of one year.  The Endeavor was stationed in the Cleon Sector later in 2368 when Enterprise crew members were controlled by Ktarian operatives seeking to gain control in Starfleet.  Commander William Riker was ordered to pilot a shuttle to the Endeavor to spread the Ktarian takeover. ("The Game" TNG)  The Endeavor was part of the Starfleet armada that intercepted a Borg Cube at Earth on Stardate 50893 ("Star Trek: First Contact").  The starship Endeavor was named in honor of British Explorer James Cook's flagship and for NASA's space shuttle.