OTTAWA—The Canadian Armed Forces is reeling after news defence chief Admiral Art McDonald is being investigated for misconduct, only weeks after military police launched an investigation into allegations against his predecessor. Defence Minister Harjit Sajjan revealed late Wednesday that McDonald had “voluntarily stepped aside” while military police investigate unspecified allegations. McDonald took over as the chief of the defence staff last month from Gen. Jonathan Vance, who is being investigated after allegations of inappropriate behaviour. Vance has denied any wrongdoing and McDonald has not commented. Canadian Army commander Lt.-Gen. Wayne Eyre has been appointed acting chief of the defence staff. Conservative defence critic James Bezan called Thursday for the government to reveal the nature of the allegations against McDonald, who used his first address as defence chief on Jan. 14 to apologize to victims of military sexual misconduct and hate. “In the interest of morale, and for our women and …