This screen is the users Unit Production screen. With this page, users can produce military and civil units. Units might have a different purpose, military units are for attacking to other users, and defending cities, civilian units on the other hand,
can gather information from enemy cities, can transport goods, or find new cities. User can read the brief
explanation under each unit in this screen, or click on the unit picture and go to help section to read a detailed explanation of all units.
Once you initiate production of some certain number of one type of units, other production options will be disabled until you finalize your production in that city or cancel the progress.
User can only engage in one production at any given time in a particular city. The resource requirements
are be provided from the selected city.
Once you have units produced and available in a city, you can create fleets to send for specific tasks as described next.