expanding_steppe_effect

expanding_steppe_effect = {
	switch = {
		trigger = yes
		# West
		scope:ghw_region_anatolia = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = ghw_region_anatolia
			}
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = occident }
		}
		scope:custom_eastern_balkans = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = custom_eastern_balkans
			}
		}
		scope:ghw_region_northern_russia = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = ghw_region_northern_russia
			}
		}
		scope:ghw_region_southern_russia = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = ghw_region_southern_russia
			}
		}
		scope:custom_hungary = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = custom_hungary
			}
		}
		scope:ghw_region_poland = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = ghw_region_poland
			}
		}
		scope:ghw_region_baltic = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = ghw_region_baltic
			}
		}
		scope:dlc_mpo_steppe_caucasus_expansion = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = west
				REGION = dlc_mpo_steppe_caucasus_expansion
			}
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = transcaspia }
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = occident }
		}
		# Central
		scope:world_transoxiana = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = central
				REGION = world_transoxiana
			}
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = transcaspia }
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = central_asia }
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = occident }
		}
		scope:world_khorasan = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = central
				REGION = world_khorasan
			}
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = central_asia }
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = occident }
		}
		scope:dlc_mpo_steppe_persia_expansion = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = central
				REGION = dlc_mpo_steppe_persia_expansion
			}
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = occident }
		}
		scope:dlc_mpo_steppe_siberia_further_expansion = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = central
				REGION = dlc_mpo_steppe_siberia_further_expansion
			}
			custom_tooltip = permafrost_modifier_removal_desc
			hidden_effect = {
				situation:the_great_steppe ?= {
					situation_sub_region:steppe_central = {
						every_situation_sub_region_county = {
							if = {
								limit = { has_county_modifier = mpo_siberian_permafrost_modifier }
								remove_county_modifier = mpo_siberian_permafrost_modifier
							}
							else_if = {
								limit = { has_county_modifier = mpo_siberian_permafrost_modifier_bad }
								remove_county_modifier = mpo_siberian_permafrost_modifier_bad
							}
						}
					}
				}
			}
		}
		# East
		scope:dlc_mpo_steppe_hexi_tarim_expansion = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = east
				REGION = dlc_mpo_steppe_hexi_tarim_expansion
			}
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = central_asia }
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = transcaspia }
			tgp_silk_road_expand_steppe_effect = { SUB_REGION = occident }
		}
		scope:dlc_mpo_steppe_north_china_expansion = {
			expanding_steppe_add_region_effect = {
				SUB_REGION = east
				REGION = dlc_mpo_steppe_north_china_expansion
			}
		}
		scope:dlc_mpo_steppe_central_china_expansion = {

As written in game/common/scripted_effects/09_dlc_mpo_scripted_effects.txt.