To avoid further confusion the word war needs to be replaced with the word tradewar. This word can then be refined, oil tradewar, heroin tradewar, slave tradewar, or in another way, tradewar justified by religious lies, tradewar justified by nationalist lies.
This clearer language will allow young men to make informed decisions about fighting. If they choose to fight they will be able to negotiate a suitable reward for the risk they take, possibly a share of the value of the trade concerned.
Or they might choose to not fight, if they understand what tradewar really is.