You guys obviously have no idea how towny war works....
During a war, Nations fight each other. Towns without a nation are not included, cannot score points and cannot have their townblocks griefed. Nations can also pay a daily Neutrality cost to avoid taking part in a war.
These are my suggestions for towny war:
Eco Settings
price_nation_neutrality: '100,000.0'
price_death_type: fixed
price_death_pvp_only: 'true'
price_death: '100.0'
price_death_town: '250.0'
price_death_nation: '500.0'
Jail Settings
is_jailing_attacking_enemies: 'true'
is_jailing_attacking_outlaws: 'false'
jail_allows_ender_pearls: 'true'
jail_denies_town_leave: 'true'
is_allowing_bail: 'true'
bail_amount: '10,000.0'
War Settings
nation_can_be_neutral: 'true'
disallow_one_way_alliance: 'false'
place_flag: '0.0'
defended_attack: '0.0'
townblock_won: '0.0'
homeblock_won: '0.0'
warning_delay: '60'
towns_are_neutral: 'true'
only_attack_borders: 'true'
healable: 'true'
firework_on_attacked: 'true'
remove_on_monarch_death: 'false'
allow_block_griefing: 'false'
town_block_hp: '60'
home_block_hp: '120'
base_spoils: '0.0'
wartime_town_block_loss_price: '0.0'
price_death_wartime: '1,000.0'
costs_townblocks: 'false'