[member="Viktor Alexander"]
Aster's pretty much on the money.
The Warden's would essentially serve as the representative of a planet. Serving as a link between it, and the Empire as a whole. They would work with the planet's leadership, towards fulfilling the needs of the planet. That could be, let's say, aid in getting money to a poor planet. Food to a starving planet. etc.
It's basically "Here's what the planet wants or need, how can we help them achieve it."
Ok so who determines these things such as what a planet wants or needs? The Warden in question at their discretion, The Emperor taking into account the needs and desires of the Empire as a whole?
It is also possible for the leader of the planet, think a King or Queen, to hold the position of Warden. (This is mainly done to better accommodate PC's who have spent time building their character up as the leader of a planet.)
In the event where a Warden holds a concurrent rank with a military branch of the Iron Empire (Think Army, or Navy), their duty would also include the defense of the planet.
Is it common or required for a Warden to hold a concurrent military rank or up to the individual Warden in question? Would inclusion of planetary defense duties be limited to Wardens concurrently holding military ranks? Or could for example like the Balmorra thread between Viktor and then High Colonel Baelor a Warden enlist the opinion or advice of a member of the military in how best to defend said planet?