You had the will and sought the means. Waiting till you had the means would be nonsensical.
How are we being dishonest?
We disliked your antics in the last war, but that isn't here or there. After the last war, we would have happily avoided you, but you wanted REVENGE or whatever and started a campaign of harassment and coalition building against us. When you realized we had the stronger hand, you tried to pretend it never happened. We knew better and we figured if you could find the opportunity to attack us in the future, you would do so. Rather than sitting by passively as you tried to act as if your aggressive feelings were dormant, we chose to act.