So, does aikido practice entail that we become peace activists and enter politics? In Japan, clearly not. However, the statement by an 8th dan shihan that we practise aikido for world peace is intriguing
There are many ways of looking at peace. Pacifism is not the only way to achieve it but sometimes it is. We did not come to peace with Japan as a result of pacism for example. And in a self defense situation using Aikido, you can not always rely on avoiding the conflict and sometimes must use force.
There are people on both the left and right that enjoy peace. And both the left and right have used war & violence to promote their agenda. The motivation of "pacifists" are not always as pure as they claim either, it sometimes is just a political tool used to try and gain advantage.
So this idea also tranfers to Aikido, it gives one many tools to achieve peace, sometimes it involves violence, sometimes not. It seems to me that Ueshiba was neither left-wing nor right-wing, he wanted peace in the most true sense of the word. it seems he was not concerned with the modern day political aspects of the peace or war movements, just how to use Aikido to achieve peace through whatever means necessary. Peace is niether a left-wing or right-wing concept.