Adm. Art McDonald and Gen. Jonathan Vance are facing military police investigations amid what experts call a 'crisis' for the Canadian Forces.

Chief of Defence Staff Adm. Art McDonald stepped aside after a military police probe opened on Wednesday, while Gen. Jonathan Vance also faces an investigation.

Former chief of defence staff Gen. Jonathan Vance is facing allegations of inappropriate behaviour with two female subordinates, including while he was in the top post.

Two government sources have told Global News that Gary Walbourne raised concerns about Gen. Jonathan Vance to Defence Minister Harjit Sajjan in 2018.

Gen. Jonathan Vance denies the allegations of inappropriate behaviour and says he has been a "champion" and "friend" to Maj. Kellie Brennan.

Harjit Sajjan will be among five top-level witnesses testifying about allegations of inappropriate behaviour by former chief of defence staff Gen. Jonathan Vance.

Military police announced last week they had opened an investigation into allegations of inappropriate behaviour by Gen. Jonathan Vance.

Gen. Jonathan Vance is facing allegations of inappropriate behaviour with two female subordinates and the defence committee is set to hear a motion for emergency meetings.

Gen. Jonathan Vance is facing allegations of inappropriate behaviour with two female subordinates. Military police announced on Thursday that they would launch an investigation.

Canada's chief of defence staff had vowed there would be an investigation into allegations that his predecessor, Gen. Jonathan Vance, engaged in inappropriate behaviour.