Well, in SU it worked as "territorial divisions" (sort of militia, details in the link of my signature on one of last pages) in 1925 and fully regulars in 1939.
ideas = {
mobilization_laws = {
disarmed_nation = {
}
volunteer_only = {
ai_will_do = {
factor = 1
modifier = {
factor = 60 # being disarmed is bad in a wargame yo
has_idea = disarmed_nation
}
}
}
limited_conscription = {
ai_will_do = {
factor = 1
modifier = {
#Prio if low on manpower
factor = 20
manpower_per_military_factory < 1000
}
}
}
extensive_conscription = {
ai_will_do = {
factor = 1
modifier = {
#Prio if low on manpower
factor = 20
manpower_per_military_factory < 800
}
modifier = { # china relies a lot on throwing bodies at the enemy
factor = 3
tag = CHI
has_manpower < 200000
}
}
}
service_by_requirement = {
ai_will_do = {
factor = 1
modifier = {
#Prio if low on manpower
factor = 20
manpower_per_military_factory < 700
}
modifier = {
#Lower chance if has decent amount
factor = 0.5
manpower_per_military_factory > 1000
}
modifier = {
#Block has plenty manpower
factor = 0
NOT = { tag = CHI }
manpower_per_military_factory > 3000
}
modifier = { # china relies a lot on throwing bodies at the enemy
factor = 3
tag = CHI
has_manpower < 200000
}
}
}
all_adults_serve = {
ai_will_do = {
factor = 1
modifier = {
#Prio if low on manpower
factor = 20
manpower_per_military_factory < 600
}
modifier = {
#Lower chance if has decent amount
factor = 0.5
manpower_per_military_factory > 1000
}
modifier = {
#Block has plenty manpower
factor = 0
NOT = { tag = CHI }
manpower_per_military_factory > 5000
}
modifier = { # china relies a lot on throwing bodies at the enemy
factor = 3
tag = CHI
has_manpower < 200000
}
}
}
scraping_the_barrel = {
ai_will_do = {
factor = 1
modifier = {
#Prio if low on manpower
factor = 20
manpower_per_military_factory < 500
}
modifier = {
#Lower chance if has decent amount
factor = 0.5
manpower_per_military_factory > 1000
}
modifier = {
#Block has plenty manpower
factor = 0
manpower_per_military_factory > 5000
}
}
}