The rally will begin with a motorcycle ride in front of Parliament Hill, followed by a march-past outside the parliamentary precinct just as question period gets underway.
The demonstrations come a day after a House of Commons committee recommended modest changes to the federal government's veterans charter.
The report is not binding on the government, and committee members have acknowledged that not everyone will be pleased with its conclusions.
Here are some other events and potential happenings today on Parliament Hill:
— All eyes will be on Justice Minister Peter MacKay in anticipation of a proposed new prostitution law that could be introduced as early as today;
— Financial markets will be waiting to hear from the Bank of Canada as it sets the country's overnight target for interest rates;
— The Co-operative Housing Federation of Canada will hold a rally on the Hill to raise awareness about expiring federal assistance for existing co-op housing;
— And the Olympic flag will be flying high as athletes from the Sochi Games are honoured in the House of Commons. Medalling athletes and coaches from the 2014 Olympics and Paralympics will also receive cheques as part of the Canadian Olympic Committee's Athlete Excellence Fund.