Currently the regular army is structured along these lines
This see's the light infantry battalions incorporated into mech brigades. Essentially our light infantry units are mech units on the cheap as the army has the money to fund 3 extra infantry battalions but not enough to fund the purchase of additional vehicles.
Now what if we disconnected those light battalions from the mech brigades and had them form their own brigade along these lines
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We would still have three mechanized brigades with a reduced Infantry footprint of 2 mech battalions
This would also give us a light infantry brigade as well which in theory would make operating as a true light force easier. As you may notice the size of the support elements would be reduced from a Btn/Regiment sized formation to a Coy level formation. The Artillery would employ 81mm mortars while a light engineer capability would also need to be developed. The biggest problem that would arise from this is the fact that all the battalions would not be co-located geographically together. How we would get past this would be splitting the Support Coys up and providing each Infantry Battalion with a platoon of engineers/loggies/and artillery which would essentially become CSC/CSS assets to the Battalions but could be formed together if the need arose.
This would take care of the problems that would occur with the geographical separation that exists between the units, but if we were to do this what would be the point of even having a separate brigade? The point is that; as Technoviking pointed out, what is needed to train Infantry soldiers is the bridging of Gap's between Individual/and Collective Training. A mech force can act as light infantry no question; however, re-rolling from mech infantry to light infantry takes time and effort and vice-versa. Having a Brigade formation that trains day-to-day as a light force would give Canada an extra tool at its disposal.
So I will summarize what I think are the advantages and disadvantages of this and then we can pick this bad boy apart.
Advantages:
1. 80% of Canada's territory is inaccessible to Mechanized Forces; having a dedicated light infantry force would allow Canada to rapidly react to unforeseen events over its entire border. It would give Canadian Forces the ability to project power anywhere in Canada. This goes hand in hand with the Canada First Defence Strategy and its first Core-Mission "Conduct daily domestic and continental operations, including in the Arctic and through NORAD" http://www.forces.gc.ca/site/pri/first-premier/missions-eng.asp
2. Going hand in hand with some comments made about Arctic Sovereignty earlier; the light infantry force could become the SME's and primary responders to a crisis in the Arctic, the Para Capability could be maintained within the 3 light battalions to give us added punch and additional arctic capability. Within the CSS and CSC branch we could attach Troop of Sig/Eng/Log etc to the Para Coy to give them that necessary support capability and enablers.
3. I will use OP Halo as an example for this; 2 RCR deployed for this op and it was a light operation with some air mobile assets. I am not speaking from experience here but my OC was with 2 RCR at the time and he said 2 RCR was very lucky the way it worked out because they had by chance done collective training with helicopters and as a light infantry force prior to this deployment. Without this it may not have been as successful. Would it not be more prudent to have a light force that is continuously operating in an airmobile/light role that if these sorts of deployments arise they can be deployed rapidly. Other armies maintain this capability why can't we. This would also support the 6th Core missions "Deploy forces in response to crises elsewhere in the world for shorter periods" http://www.forces.gc.ca/site/pri/first-premier/missions-eng.asp
4. Finally; this would give us FLEXIBILITY, As some have mentioned earlier, the current force generation cycle is heavily reliant on providing soldiers with ample time to conduct collective training prior to deployment. Having a Light Force as well as a Mechanized Force would allow us to rapidly deploy and provide follow on forces to conduct collective training; be it in a Mech or Light Role.
Disadvantages:
1. Logistics - Working out how these units would be supported from the army is something I will leave to people with bigger brains to me. I personally envision certain assets such as Mortars/Engineers/Logistics being integrated into the Battalions themselves, higher level logistics could be provided by respective ASU's. The issue with this whole thing is with the vast distances between the light battalions how do you provide this light organization with cohesion and logistical support. This would need to be worked out by some highly qualified senior NCO's and Officers with far more knowledge then I possess.
2. Procurement - A big problem with the whole light concept is a lot of the enablers have been taken away that would make this functional. We are getting the Choppers back which is awesome, however the light battalions right now currently are very lacking in terms of vehicles/other key resources. I have heard a variety of rumours that the army wants to get rid of the G-Wagon. I have no idea why but for me these would be the perfect platform for light infantry, they are small and nimble enough to be easily transported rapidly but they also would provide light infantry units with mobility and flexibility. One thing that Canadian Army also lacks is the necessary winter equipment to operate in the Arctic. We have gotten rid of the Bv206's and their aren't exactly a wealth of skidoos and other equipment sitting around at the battalions (atleast not at 3 RCR).
So procurement of specialized equipment would definitely need to be done if we wanted a true light infantry capability especially if we wanted to be able to operate in the Arctic or Northern Canada, which would be one of the main reasons behind a airmobile/light infantry brigades raison d'etre.
3. Cost - Operating this sort of niche capability may in the end cost the army more; so money would need to be pulled from other areas to make this work. Where this would come from I don't exactly know, maybe nice to haves like the CCV project need to be canned, the army has already identified the LAV III as its primary vehicle fleet anyways so why we need a handful of CCVs is beyond me.
4. Additional Overhead - Do we really need to create another Brigade for this? A lot of people complain about how much overhead the army already has do we really need another Brigade to pull something like this off? I would argue we do so that Collective Training as a light infantry force can be achieved, and clear direction can be given; however, I am sure some would disagree with me.
Well I have dragged this post on for long enough thats what happens when I have too much time on my hands on a Sunday afternoon but really if we are going to bring back light infantry, and develop an air-mobile capability this may be a way to move forward. It would allow the Army to satisfy the core-missions highlighted in the Canada First Defense Strategy while providing us with an increased ability to project power abroad.