Huh, I'm on testing and I can see it. It should be under the Command page on the right side in the blue box 'important information'. I'm a Steward there though, but I don't think that matters. It might else *thinks*
There are a few ways to see forces. The Statistics Page under Information shows Realm Forces, but is a week old. Looking at Region Details can show you the strength of any troops in that region, but only works if you're in that region or the region is part of your Realm (You can't see if troops are travelling like this though). Otherwise you will need Scout Reports (Scout Reports are used a lot. They show if troops are travelling as well). Marshals can see the CS and status (Travelling etc.) of their own Army (Sponsors and Vice-Marshals might as well, not sure), and Generals can see the CS and status of each Army as well.
Those are the few main ways I can think off right now.