If Wilhelm II had died young and there were no Anglo-German naval race, would Britain sit out a version of the Great War?
Short answerPossibly; absent a threat to naval supremacy or Belgium, Britain had no automatic reason to enter a continental war.
NotesThe counterfactual removes Kaiser Wilhelm II and, with him, the naval competition that helped turn Germany into a direct British security concern. Britain had remained outside the Franco-Prussian War and did not automatically intervene in every continental conflict. The main triggers were a threat to British naval supremacy and the violation of Belgium, whose neutrality Britain guaranteed. If neither condition arose, a different European war could leave Britain on the sidelines.