18 days of MERLIN data and 42h of A-array VLA data at 1.4GHz have been combined to image a 10-arcmin field centred on the Hubble Deep Field (HDF). This area also includes the Hubble Flanking Fields (HFF). A complete sample of 92 radio sources with S1.4>40{mu}Jy was detected using the VLA data alone and then imaged with the MERLIN+VLA combination. The combined images offer (i) higher angular resolution (synthesized beams of diameter 0.2-0.5arcsec), (ii) improved astrometric accuracy, and (iii) improved sensitivity compared with VLA-only data.