Alfred Searls

How the UK used its dominant position as a Coal Exporter to help win WW1. We put extreme pressure on countries like Norway, Sweden, Denmark to carry out our wishes. Interesting facet to the war that we never hear about 🇬🇧⬇️ Britain used its dominant position as the world’s leading coal producer and exporter—especially of high-quality bunker (steamship) coal—as a major instrument of commercial and diplomatic leverage during World War I.** This formed a core part of the broader Allied blockade and economic warfare system, often described as more flexible and effective than pure naval blockade alone. Before the war, Britain supplied a large share of Europe’s coal and over 80% of global bunker coal for the world’s merchant fleet (most of which was still coal-powered). It also controlled the main network of coaling stations and depots along major trade routes. From the early months of the war, Britain developed **“bunker control.”** This restricted or denied coal bunkers at British ports and British-controlled foreign depots to neutral ships whose owners had not accepted formal “Conditions of Supply.” These conditions typically required: - No carriage of goods of enemy origin or destination. - No chartering to enemy subjects or blacklisted firms. - Voluntary calls at British ports or inspection arrangements (later formalized with navicerts). - Often, a commitment covering an owner’s entire fleet. Ships or owners placed on blacklists (for trading with Germany or engaging in “un-neutral service”) could be immobilized without firing a shot. Contemporary accounts, including those by shipping controller J.A. Salter, described this as one of the most powerful coercive tools available, because neutral shipowners could not easily operate long-distance trade without reliable bunkering. ### The Coal Exports Committee and Licensing In April 1915, the **Coal Exports Committee** (under the Board of Trade) was set up to manage exports. Its priorities were: 1. Retain enough coal for British home consumption and war industries. 2. Guarantee supplies to Allies—especially France (whose northern coalfields were occupied, roughly doubling its need for British coal) and later Italy. 3. Allow surplus exports to neutrals only under license and at high prices, while applying pressure. Exports to neutrals (and soon also to Allies) required licenses. This enabled systematic **“coal pressure”**: supplies were granted only in exchange for compliance with Allied interests, such as limiting or stopping trade with Germany, providing return cargoes (pit props, ore, food, etc.), or allocating shipping to Allied service. ### Leverage on Neutrals Scandinavian countries (Norway, Sweden, Denmark) and the Netherlands were particularly vulnerable because they depended heavily on British coal for industry, railways, heating, and shipping, while also having access to Baltic trade routes that could supply Germany. - Britain rationed coal imports to these countries to prevent surplus production or re-exports reaching Germany. - Firms dealing with the enemy were blacklisted and denied coal. - A clear example is Norway, later nicknamed “The Neutral Ally.” On 24 December 1916, Britain issued an ultimatum: coal exports would cease unless Norway stopped trading with Germany (notably in fish and pyrites). Norway complied. Britain also organized much of Norway’s coal supply and transport in return for large amounts of Norwegian shipping for Allied use (including coal shipments to France). Hundreds of Norwegian ships were lost to U-boats, reinforcing the practical alignment. - Similar pressures were applied to Denmark, Sweden, and the Netherlands, often combined with certificates of origin, restrictions on specific goods, or requirements for return cargoes. Some agreements involved exchanges of coal for essential imports.