The Channel's fixed geography, the Dover Barrage, and larger fleet presence let monitors operate in a concentrated group with other heavy and medium-calibre monitors. Army support in the eastern Mediterranean demanded ships in widely separated places as the land campaign moved. The Battle of Imbros prompts a counterfactual: a group combining the available 14-inch, 12-inch, and 9.2-inch monitors would have presented a battlecruiser with several damaging targets firing from different angles. The Dogger Bank analogy is that concentrating on one monitor would leave the others free to fire, while dividing fire would reduce the chance of crippling any single ship. Operational demand prevented that concentration and left individual monitors more vulnerable. A lone monitor could not match a battleship, but a dozen together might deter a solitary battleship or battlecruiser from attacking.
Notable Point · 29:56-33:25
Monitor concentration versus Mediterranean dispersion
Monitors could mass their guns in the defended Channel, while the mobile eastern Mediterranean campaign required the same ships to disperse among distant army operations.