(Radical) pacifism and governmental force (army, police, etc.)
I think this would take a political scientist to answer but I'll try to give a few thoughts on this. 

I listened to a podcast a while ago where Owen Flanagan was arguing that Buddhism was ill suited to form part of any political philosophy. Whereas a country may be Buddhist from a democratic perspective when it comes to the political sphere that country will operate with a different political philosophy such as monarchy, oligarchy etc... So whether a Buddhist does or doesn't subscribe to radical pacifism would be irrelevant in Buddhist countries as the political philosophy isn't actual based on Buddhism. I'm not agreeing or diagreeing with this - my knowledge of global political structures isn't strong enough to support that stance. However it was an interesting assertion and relevant here I think.

Also for many people the Dalai Lama is the Buddhist political leader that they are most familiar with and his attitude to political force is complex. For instance he has given messages of support to the armed forces - while that not directly advocating violence it isn't radical pacifism either.

In short although I do think that radical pacifism is a valid Buddhist position I don't believe it is a position that political figures hold whether in Buddhist countries or being Buddhist themselves. Very happy to be proved wrong on this of course.