Here's the code:

focus_tree = { id = hilderania_focus

country = {
    factor = 0

    modifier = {
        add = 10
        tag = HLR
    }
}

default = no

focus = {
    id = HLR_army_effort
    icon = GFX_goal_generic_allies_build_infantry
    x = 1
    y = 0
    cost = 10

    available_if_capitulated = yes

    completion_reward = {
        army_experience = 5
        add_tech_bonus = {
            name = land_doc_bonus
            bonus = 0.5
            uses = 1
            category = land_doctrine
        }
    }
}

focus = {
    id = HLR_equipment_effort
    icon = GFX_goal_generic_small_arms
    prerequisite = { focus = army_effort }
    x = 0
    y = 1
    cost = 10

    available_if_capitulated = yes

    completion_reward = {
        add_tech_bonus = {
            name = infantry_weapons_bonus
            bonus = 0.5
            uses = 1
            category = infantry_weapons
            category = artillery
        }
    }
}

focus = {
    id = HLR_motorization_effort
    icon = GFX_goal_generic_army_motorized
    prerequisite = { focus = army_effort }
    bypass = { has_tech = motorised_infantry }
    x = 2
    y = 1
    cost = 10

    available_if_capitulated = yes

    completion_reward = {
        add_tech_bonus = {
            name = motorized_bonus
            bonus = 0.75
            technology = motorised_infantry
        }
    }
}