The enemy have a city nearby that looks relatively undefended, if we can seize it, we'll gain a valuable province.
Right-clicking on the enemy city presents us with some pre-battle options. A siege offers a new choice:
we can look to starve out the population, maintaining the siege for a number of turns until we gain a peaceful surrender.
But we'll choose to put our enemy out of their misery here; let's auto-resolve.
Their resistance was futile! The enemy city is ours for the taking. Now we can choose to ruthlessly loot the
city of its wealth, request that it becomes our vassal, or occupy it peacefully.
Let's get a better view of our prize. Double left-clicking on the city opens the province details panel.
Here we can check on the wealth and growth it's currently generating. Right now however, we've a small matter of public unrest
to deal with.