carrier_battlegroups = {
    track = carriers
    name = SUBDOCTRINE_CARRIER_BATTLEGROUPS
    description = SUBDOCTRINE_CARRIER_BATTLEGROUPS_DESC
    icon = GFX_doctrine_carrier_battlegroups_medium

    xp_cost = 100
    xp_type = navy

    ai_will_do = { 
        base = 1
        modifier = {
            factor = 50
            original_tag = USA
        }
    }

    available = {
        has_tech = aviation_dawn
    }

    ai_will_do = { }

    # EFFECTS
	port_strike = 0.20
    strike_force_movement_org_loss = -0.1

    rewards = {
		long_distance_logistics = {
            carrier = {
                max_organisation = 10
            }
			modifier = {
                navy_max_range_factor = 0.1
                navy_fuel_consumption_factor = -0.05
            }
		}
        bomber_scouting = {
			carrier = {
                carrier_surface_detection = 0.15
            }
            modifier = {
                navy_carrier_air_agility_factor = 0.1
            }
		}
		professional_deck_management = {
			carrier = {
				max_organisation = 15
			}
            modifier = {
                sortie_efficiency = 0.1
                carrier_capacity_penalty_reduction = -0.1
            }
		}
		fleet_antiair = {
			carrier = {
                max_organisation = 15
				anti_air_attack = 0.15
			}
            modifier = {
                sortie_efficiency = 0.1
                fighter_sortie_efficiency = 0.1
            }
		}
		alpha_strike = {
            modifier = {
                sortie_efficiency = 0.1
                navy_carrier_air_targetting_factor = 0.1
                carrier_capacity_penalty_reduction = -0.1
            }
		}
    }
}

floating_airfields = {
    track = carriers
    name = SUBDOCTRINE_CARRIER_AIRFIELDS
    description = SUBDOCTRINE_CARRIER_AIRFIELDS_DESC
    icon = GFX_doctrine_floating_airfield_medium

    xp_cost = 100
    xp_type = navy

    available = {
        has_tech = aviation_dawn
    }

    ai_will_do = { 
        base = 1
        modifier = {
            factor = 25
            OR = {
                original_tag = ENG
                original_tag = FRA
            }
        }
        modifier = {
            factor = 2
            is_major = yes 
        }
        modifier = {
            factor = 0
            is_major = no 
        }
    }

    # EFFECTS
	navy_anti_air_attack_factor = 0.10
	
    rewards = {
       enclosed_hangar = {
			carrier = {
                max_organisation = 10
                reliability = 0.1
            }
	   }
	   fleet_antiair = {
			carrier = {
				max_organisation = 15
                anti_air_attack = 0.15
			}
	   }
	   reserved_fighters = {
			fighter_sortie_efficiency = 0.15
	   }
	   dogfight_training = {
			navy_carrier_air_agility_factor = 0.1
            sortie_efficiency = 0.05
            carrier = {
                anti_air_attack = 0.05
            }
	   }
	   rough_weather_procedures = {
            sortie_efficiency = 0.1
			equipment_bonus = {
                carrier = {
				    naval_weather_penalty_factor = -0.15
			    }
            }
	   }
    }
}

subsidiary_carrier_support = {
    track = carriers
    name = SUBDOCTRINE_SUBSIDIARY_CARRIER_SUPPORT
    description = SUBDOCTRINE_SUBSIDIARY_CARRIER_SUPPORT_DESC
    icon = GFX_doctrine_escort_carriers_medium

    xp_cost = 100
    xp_type = navy

    available = {
        has_tech = early_ship_hull_carrier
    }
    
    convoy_escort_efficiency = 0.2

    rewards = {
    	evasive_convoy_maneuvers = {
    		convoy_retreat_speed = 0.2
    	}
    	anti_submarine_escorts = {
    		carrier = {
    		    carrier_sub_detection = 0.2
    		}
    	}
    	fleet_antiair = {
            carrier = {
				max_organisation = 15
                anti_air_attack = 0.15
			}
        }
    	integrated_convoy_escorts = {
			modifier = {
                navy_carrier_air_targetting_factor = 0.05
                convoy_escort_efficiency = 0.1
            }
    	}
    	carrier_support_groups = {
            modifier = {
                fighter_sortie_efficiency = 0.15
            }
    	}
   	}
}

carrier_concentration = {
    track = carriers
    name = SUBDOCTRINE_CARRIER_CONCENTRATION
    description = SUBDOCTRINE_CARRIER_CONCENTRATION_DESC
    icon = GFX_doctrine_carrier_primacy_medium

    xp_cost = 100
    xp_type = navy

    ai_will_do = { 
        base = 1
        modifier = {
            factor = 50
            original_tag = JAP
        }
    }
    available = {
        has_tech = aviation_dawn
    }

    sortie_efficiency = 0.1
    strike_force_movement_org_loss = -0.05

    rewards = {
    	deep_operative_support = {
    		carrier = {
    			reliability = 0.05
    			naval_range = 0.2
    		}
    	}
    	mobile_force = {
    		carrier = {
                max_organisation = 15
            }
            modifier = {
                navy_carrier_air_targetting_factor = 0.1
            }
    	}
    	improved_mission_oriented = {
    		carrier = {
                max_organisation = 10
                anti_air_attack = 0.15
            }
            fighter_sortie_efficiency = 0.05
    	}
    	efficient_rearming = {
    		carrier = {
                max_organisation = 5
    			supply_consumption = -0.15
    			fuel_consumption = -0.1
    		}
    	}
    	massed_air_raid = {
    		modifier = {
                sortie_efficiency = 0.1
                carrier_capacity_penalty_reduction = -0.1
                navy_carrier_air_attack_factor = 0.1
            }
    	}
    }
}


naval_airfoce = {
    track = carriers
    name = SUBDOCTRINE_NAVAL_AIRFOCE
    description = SUBDOCTRINE_NAVAL_AIRFOCE_DESC
    icon = GFX_doctrine_naval_airforce_medium

    xp_cost = 100
    xp_type = navy

    ai_will_do = { 
        base = 1
    }
    available = {
        has_tech = early_ship_hull_carrier
    }

    naval_retreat_speed_after_initial_combat = 0.1
    naval_strike_attack_factor = 0.05

    rewards = {
    	direct_fire_avoidance = {
    		carrier = {
    			surface_visibility = -0.1
    		}
    	}
    	land_based_support = {
    		category_nav_bomber = {
                air_range = 0.2
            }
    	}
    	air_raiders = {
    		carrier = {
                max_organisation = 10
            }
            modifier = {
                sortie_efficiency = 0.05
                navy_carrier_air_targetting_factor = 0.05
            }
    	}
    	evasive_engagements_focus = {
    		carrier = {
    			max_organisation = 10
    		}
            naval_enemy_fleet_size_ratio_penalty_factor = 0.1
    	}
    	airpower = {
    		naval_strike_attack_factor = 0.1
            naval_strike_agility_factor = 0.1
    	}
    }

}