A surgical instrument, comprising: a handle; a trigger operably coupled to said handle, said trigger movable from an unactuated position to an actuated position upon an actuation of said trigger, said trigger returnable from said actuated position to said unactuated position upon release of said trigger; a closure drive (68, 72) operatively engaged with said trigger, wherein said closure drive is configured to generate a closing motion upon a first actuation of said trigger, wherein said first actuation moves said trigger from said unactuated position to said actuated position; a firing drive (100, 102, 130, 106), wherein said firing drive is not operably engaged with said trigger prior to said first actuation of said trigger, wherein said firing drive is configured to engage said trigger as a result of said first actuation, and wherein said firing drive is configured to generate a firing motion upon a second actuation of said trigger after said trigger has been released and returned to its unactuated position, wherein said second actuation moves said trigger from said unactuated position to said actuated position; an elongate shaft assembly coupled to said handle, wherein said elongate shaft assembly is operably engaged with said firing drive; and an end effector coupled to said elongate shaft assembly, said end effector comprising: an elongate channel configured to operably support a staple cartridge therein; an anvil movably coupled to said elongate channel, wherein said anvil is operably engaged with said closure drive and is movably responsive to said closing motion; and a cutting member operably supported within said elongate channel, wherein said cutting member is operably engaged with said elongate shaft assembly and is responsive to said firing motion from said firing drive. a handle; a trigger operably coupled to said handle, said trigger movable from an unactuated position to an actuated position upon an actuation of said trigger, said trigger returnable from said actuated position to said unactuated position upon release of said trigger; a closure drive (68, 72) operatively engaged with said trigger, wherein said closure drive is configured to generate a closing motion upon a first actuation of said trigger, wherein said first actuation moves said trigger from said unactuated position to said actuated position; a firing drive (100, 102, 130, 106), wherein said firing drive is not operably engaged with said trigger prior to said first actuation of said trigger, wherein said firing drive is configured to engage said trigger as a result of said first actuation, and wherein said firing drive is configured to generate a firing motion upon a second actuation of said trigger after said trigger has been released and returned to its unactuated position, wherein said second actuation moves said trigger from said unactuated position to said actuated position; an elongate shaft assembly coupled to said handle, wherein said elongate shaft assembly is operably engaged with said firing drive; and an end effector coupled to said elongate shaft assembly, said end effector comprising: an elongate channel configured to operably support a staple cartridge therein; an anvil movably coupled to said elongate channel, wherein said anvil is operably engaged with said closure drive and is movably responsive to said closing motion; and a cutting member operably supported within said elongate channel, wherein said cutting member is operably engaged with said elongate shaft assembly and is responsive to said firing motion from said firing drive. an elongate channel configured to operably support a staple cartridge therein; an anvil movably coupled to said elongate channel, wherein said anvil is operably engaged with said closure drive and is movably responsive to said closing motion; and a cutting member operably supported within said elongate channel, wherein said cutting member is operably engaged with said elongate shaft assembly and is responsive to said firing motion from said firing drive.