Religious and humanitarian sympathy mattered publicly, but strategic competition bound the intervention together. Greece lay close to the Dardanelles and important eastern Mediterranean routes. Russian intervention on its own could have shifted access to the straits, while a unilateral British or French success would also have disturbed the balance. Joint action let all three powers influence the settlement while denying exclusive gains to any one rival.
Notable Point ยท 7:55-9:33
Why Britain, France, and Russia intervened together
The three powers cooperate because none wants a rival to dominate Greece, the Dardanelles, or eastern Mediterranean trade routes.