Fortress

• costs 4.000 pounds, 2.000 iron per level
• production time 1 day per level
• takes up to 90% of damage inflicted on an army in town
• increases morale of province by 5% per level
• stationed troops will be hidden from enemy view if fortress is at least level 2
  

Recruitment
Office

• costs 1.000 pounds, 250 iron and lumber 
• production time 15 minutes
• enables infantry recruitment for 250 pounds/day
  
• can be disabled

Barracks

• costs 4.000 pounds, 2.000 iron and lumber
• production time 1 day
• infantry recruitment rate +100%
• decreases resource production by 33%

Harbour

• costs 10.000 pounds, 10.000 lumber
• production time 3 days
• increases morale by 10%
• increases production by 25%
• shortens time needed for dis-/embarking troops by 50% (see warfare)

Railway

Factory

• needs at least one finished European Railway to be available
• costs 10.000 pounds, 2.500 iron ore, wood, and oil
• production time 2 days per level
• increases morale by 2.5% per level
  
• increases production by 8% per level
• allows production of mechanized weapons
  (see the next page for details)

• costs 2000 pounds/province and 5000 ore and wood
• completion will move the capital to this province.
  There can only be one capital in each country.

Remarks:

• Productivity increase refers to the percentage of improvement that is added to the province's base production. Increases are not cumulative so the percentage is always applied to the base production and then added to the overall production.
• You cannot produce all upgrades immediately. As these province upgrades just arise with the currently upcoming industrialization, they are not all developed at the beginning of 1914. At least one nation has to build one of these province upgrades in order for all of Europe's countries to achieve the necessary knowledge to build the next upgrade. This means that harbours will become available with the completion of the first fortress, railways with the completion of the first harbour, and so on.
• Each upgrade can only be build once in a province and they cannot be demolished.
• In some provinces, harbours can be build at different locations. As one can only build one harbour and since harbours have a strong effect on travel speed, you should select a location that fits your desired movement routes.