I like R A Heinlein's view on that: any politician who calls for war should immediately be conscripted and sent to the front line.
Regarding Remembrance Day itself, I'm with Harry Patch, no longer with us.
He pointed out that, on that November the 11th, the leaders of the nations at war sat down around a table, and agreed to end the hostilities. Why the fuck they couldn't do so four years and several million lives previously has never been explained.