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Operation Albion: Strategic Geography and Naval Warfare 1917

Understanding historical evidence

This lesson examines the geographical significance of the Baltic Sea and the Oesel Island invasion during World War I, focusing on how coastal terrain and naval logistics shaped military strategy.

Suggested age

14–16

Duration

30 minutes

Type

Lesson pack

Conflict / period

World War I

Subjects

Geography

Content note

The lesson discusses military conflict and naval warfare. Students should be reminded that while we are studying geography and logistics, these events involved significant loss of life and should be approached with gravity.

Overview

This lesson examines the geographical significance of the Baltic Sea and the Oesel Island invasion during World War I, focusing on how coastal terrain and naval logistics shaped military strategy.

Learning objectives

Understand the strategic importance of the Baltic Sea and Estonian islands in the 1917 naval campaign.
Analyse how physical geography, such as water depth and island topography, dictated amphibious assault tactics.
Evaluate the impact of maritime blockades and control of sea lanes on World War I outcomes.

Materials required

Internet access to https://10secondwarstories.online/en/ww1/operation-albion-1917
Projector or student devices
Printed worksheets
World maps showing the Baltic region

Historical context

Operation Albion (October 1917) was a German amphibious assault on the West Estonian archipelago. It was a sophisticated combined-arms operation involving the German Navy and Army, aimed at clearing the Baltic Sea of Russian naval threats and securing control of the Gulf of Riga. It highlighted the evolving nature of maritime warfare in the 20th century.

Reading material

Operation Albion was a major German amphibious operation during World War I. To understand it, we must first look at the map. The Baltic Sea served as a critical theatre of war. The Gulf of Riga was guarded by the West Estonian archipelago, including Oesel Island. For Germany, control of these waters meant preventing the Russian fleet from threatening their maritime supply lines. Watch the 10-second summary here: https://www.youtube.com/shorts/K1hTMxejwRI and read the detailed historical analysis here: https://10secondwarstories.online/en/ww1/operation-albion-1917. The German forces faced the challenge of landing troops on heavily defended, uneven coastlines while navigating shallow waters. The victory solidified German control in the Baltic, showing how geographic bottlenecks can become decisive battlefields.

Student worksheet (preview)

Activity: 1. Watch the 10-second video. 2. Identify the strategic goal mentioned in the clip. 3. Using your atlas, identify the location of the Gulf of Riga. 4. Why was 'island hopping' or landing on these specific islands a geographical challenge for the German army? Provide a brief response below: ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Discussion questions

How does the depth of the Baltic Sea affect the type of ships that can be used in naval warfare?
Why might control of an island chain be more valuable than control of open water?
In what ways did geography limit the choices of the Russian defenders in 1917?

Extension task

Research modern maritime security in the Baltic region and write a 200-word paragraph on why this area remains geopolitically significant today.

Support prompts

Look at the map provided: Where are the islands in relation to the main coastline?
Consider the weather: How might autumn weather in the Baltic affect naval landings?
Think about logistics: What do troops need to land on an island that they do not need on the mainland?

Sources and credits

https://www.youtube.com/shorts/K1hTMxejwRI
https://10secondwarstories.online/en/ww1/operation-albion-1917
Imperial War Museum (iwm.org.uk)
The National Archives (nationalarchives.gov.uk)
BBC Bitesize - World War I History

Prepared by the 10 Second War Stories educational team and curriculum design partners.

Last reviewed: 2026-09-26