英文：A Decent Reserve
|Have a million manpower|
The A Decent Reserve achievement requires the player to have a max million manpower. In practical terms, the player must have a million manpower saved up, rather then max manpower.
|+33%||As Orthodox, with 100% Patriarch authority|
|+75%||With all russian idea groups|
|up to +25%||Russian events related to the introduction of serfdom. There are 3 which increases the manpower bonus|
Both religious idea group and Russian ideas give discounts to culture conversions, which makes is comparatively cheap to convert all non-accepted province cultures to Russian.
Other than using the listed idea groups, all lands should be culture converted or have accepted cultures. In addition, barracks should be constructed. Note that it is possible to exceed max manpower by gaining manpower through events or through the estates.