WE PROPOSE TO OPERATE A NIR (0.9-1.7 MICRONS) FIBER BUNDLE INTEGRAL FIELD UNIT SPECTROSCOPY MODE IN THE FIRST HIGH RESOLUTION SPECTROGRAPH IN 2017-2018 FOR CAPTURING MEDIUM-RESOLUTION GRB NIR SPECTRA WITHIN 10 MINUTES OF THE TRIGGER RELEASE BY SWIFT USING THE AST 2M ROBOTIC TELESCOPE IN ARIZONA. THE BROAD SIMULTANEOUS NIR WAVELENGTH COVERAGE (0.9-1.7 MICRON) WILL ALLOW THE PROMPT IDENTIFICATION OF GRBS IN THE Z=6.5-13 REDSHIFT RANGE AND THE ACQUISITION OF HIGH S/N AFTERGLOW SPECTRA WHICH CAN CONSTRAIN THE HIGHZ GRB RATE SHEDDING LIGHT ON THE FATE OF MASSIVE STARS THEIR ROLE ON RE-IONIZATION COSMIC STAR FORMATION RATE AT HIGH REDSHIFTS AND INVESTIGATE THE CHEMICAL CONTENT (E.G. NEUTRAL HYDROGEN METAL ENRICHMENT) OF THE FIRST GENERATION OF GALAXIES DURING THE RE-IONIZATION EPOCH.