You are protected from war in the initial playing period and you can extend that period. Long term, you do need defense. The target number is an initial level of defense. It is insufficient in case of a large war. Lower levels of defense may invite attacks.
Simcountry Dictionary
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You are protected from war in the initial playing period and you can extend that period. Long term, you do need defense. The target number is an initial level of defense. It is insufficient in case of a large war. Lower levels of defense may invite attacks.