Complex sentence: In December 2011 he revived the "Defenders" series with artist Terry Dodson and in August 2012 he started a new "Hawkeye" series with David Aja.
Split into simpler sentences: In December 2011 he revived the "Defenders" series with artist Terry Dodson. In August 2012 he started a new "Hawkeye" series with David Aja.