The Pan Am Games are the largest multi-sport event Canada has ever hosted, and as a result, it will require the country's largest-ever security plan.

Toronto Pan Am/Parapan Am Games organizers formed an Integrated Security Unit (ISU), which consulted with police around the world before coming up with a Games strategy.

ISU Supt. Mike McDonell told CTV's Canada AM on Thursday that the number of venues and the time span make organizing security particularly complex.

"There are a lot of moving parts," McDonnell said.

"It's complex, but we've got a large team and it's very well co-ordinated."

Here's a look at what Pan Am officials are calling the largest security operation in Canadian history, by the numbers:

$239 million – The total budget the Ontario government has allocated to security during the Games. The initial budget for the games was $121.9 million in the 2009 hosting bid, but it was doubled in April 2014.

10 – The number of police forces being called in to monitor venues, including the Ontario Provincial Police, RCMP and eight municipal departments. The exact number of officers who will be on duty has not been released for security reasons.

$57 million –The amount of the budget that goes toward salaries, logistics, training and planning for members of the Ontario Provincial Police and ISU, according to the Ontario Auditor General's report.

$101.5 million – The amount of the budget that goes toward municipal police forces.

$81 million – The amount of the budget that covers private security services contracted by the ISU.

$1.5 million – The amount spent on security devices, including metal detecting wands, closed circuit TVs and X-ray machines.

6,000 – The number of athletes from 41 countries that will be in the city for the Pan Am Games.

1,600 – The number of athletes from 28 countries that will be competing in the Parapan Am Games.

250,000 – The estimated number of visitors that will be in Toronto for the Games.

61 – The number of Games venues in the Greater Toronto and Hamilton Area. The venues are spread across the Toronto and Hamilton area, spanning a distance of 780 kilometres. Police presence will be highest in affected areas when athletes are leaving, arriving and competing.

35 days – The length of the Pan Am and Parapan Am Games.

24 hours – The amount of time the Athletes Village will be monitored by security guards. Venues will be secured days in advance of sporting events by canine teams trained to detect explosives.

14 months – The amount of time the ISU spent conducting risk assessments, which resulted in further analysis of resources, security planning and funding.