Defence leaders write joint appeal urging public on need to be prepared for war with Russia and resulting costs As defence chiefs, we must warn you about Russia and say this: rearmament is not warmongering | Richard Knighton and Carsten Breuer Defence leaders write joint appeal urging public on need to be prepared for war with Russia and resulting costs As defence chiefs, we must warn you about Russia and say this: rearmament is not warmongering | Richard Knighton and Carsten Breuer Britain and