We live in a hostile world. Being a peaceful people will not prevent another people from being aggressive towards you. Generally the more peaceful you are the more outside forces will see you as weak. You must always have your military trained and prepared for hostile actions from outside forces.

Take for example the "religion of peace" Islam... You don't have to be hostile towards them in order for them to attack you. You don't have to insult their profit or bomb their homes or have anything to do with them. Simply because you are not one of them, large swaths of their population would have you convert or die.

Remember, If you want peace, prepare for war.