WhyTietjens wants war - Parade's End

So what does it mean that Mark Tietjens, in Ford Madox Ford's Parade's End (volume 4, Last Post), vows to remain mute and immobile for the rest of his life in protest over the sudden and to him surprising decision that the British and allies will not pursue German troops across France and rout them in their "homeland"? T had been involved in transport - he never was in the service - and was preparing to transport British troops to the continent to continue the warfare, but learned on Armistice Day that it was all over. I posted yesterday on part of the significance - Armistice Day as the turning point in his life and in the life of the main figure of the series, his brother, Christopher - Mark's sense or belief that class structure in England, and therefore all values he holds dear, has disintegrated as a result of the shared combat of the war. But why would he want to continue the war? (The title of this volume, Last Post, is a reference to the bugle call that we call Taps - and T cannot bear to hear it played outside his windows on Armistice Day - he wants the bloody war to continue.) Is he bloodthirsty, vengeful, or realistic? Of course he never fought, so in this narcissistic way he cannot imagine the feelings of soldiers who welcome the peace. He's a direct contrast also to his brother's pacifist "mistress," Valentine. But then there's the possibility that: maybe he was right. Pursuing the German troops would have more serious damaged and subjugated the country and maybe would have prevented the rise of Hitler and a second world war (which of course was still in the future when FMF was writing). Maybe the allies made a terrible blunder in allowing the safe retreat of the Germans. I would, however, have expected that most of the British landed gentry and nobility would have favored ending the war as soon as possible - for the most part they would have no great stakes in European politics and in fact, like T., would have had alliances with many of the "upper classes" in other European countries - more in common with a German count than with an English gardener, for example. But Tietjens's urge for vengeance seems to be a cynical self-validation - he's like a guy playing video game, tough guy wanting to wipe out everything and everyone at no risk to his own safety or comfort. His desire for vengeance is not I think a matter of his patriotism or his analysis of global politics but rises from the same self-centered and bigoted world view that enables him to dismiss others who are not in his social class, to live off his inherited land, and to believe that this is the way the world should be - so his withdrawal from the world that does not meet his needs (I'm gonna take my ball and go home!), his narrowing of interest to center on nothing but horse races, is representative of the diminution of his class, his type.