Fort Bliss soldier Pvt. Richard Halliday has been missing since July, 23, 2020. EL PASO – As the Army continues to search for missing soldier Pvt. Richard Halliday, the commanding general at Fort Bliss has ordered an investigation of the soldier’s unit. “I directed an investigation into the leadership, climate and treatment of soldiers in the 1 st Battalion 43rd Air Defense Artillery Battalion, “said Maj. General Sean C. Bernabe, senior mission commander at Fort Bliss. Bernabe announced the investigation during an extensive update on the case for handful of journalists on post. He detailed the chronology of the “exhaustive” search for the solider who was last seen on post July 23