has_naval_treaty_trigger = {
	OR = {
		has_idea = MTG_naval_treaty_adherent
        has_idea = MTG_naval_treaty_adherent_1936
		has_idea = MTG_naval_treaty_cheating
		has_idea = MTG_naval_treaty_adherent_reduced
		has_idea = MTG_naval_treaty_cheating_reduced
	}
}

expert_ai_style = {
	has_game_rule = { rule = ai_ship_design_style option = EXPERT }
	OR = {
		tag = ENG
		tag = FRA
		tag = GER
		tag = ITA
		tag = JAP
		tag = SOV
		tag = USA
	}
}

enable_vnr_naval_ai = {
	has_global_flag = vnr_enabled
	has_game_rule = { rule = vnr_ai_naval_management option = FREE }
}