First Anglo-Boer War

Even though the Boers weren't truly Dutch citizens, the First Anglo-Boer War, also known as the First Transvaal War of Independence or the Transvaal revolt, can be considered as an extension of the historical British-Dutch conflict. Boers included descendants of settlers from all around Western Europe, even if they did have a predominance of Dutch ancestry and spoke Dutch as their first language.

Long before the war, British forces entered Boer territory, but it was the annexation of Transvaal in 1877—one of the areas under Boer control—that really set the ball rolling. Beginning in December 1880, a similarly equipped and well-trained adversary faced off against the British empire in a war—or, to be more precise, a rebellion.

It didn't go well for the British, as you may infer from the list's overall theme. Due to their frequent usage of weapons for hunting, the Boers proved to be considerably more effective fighters in that environment. The British soldiers frequently encountered mobile, mounted formations of riflemen, and they had far better equipment and strategies as well.

The crucial battle of Majuba Hill, which took place in February 1881, marked the end of the conflict when the Boers successfully stormed the British stronghold on the hill, which was garrisoned by over 400 soldiers. During this conflict, almost 22,000 British soldiers perished, and the Boer side suffered over 6,000 losses.

Date: 20 December 1880 – 23 March 1881 (3 months and 3 days)
Location: South African Republic (Present-day South Africa)
Result: Boer victory

• Pretoria Convention
  
• British recognition of the South African Republic, subject to British sovereignty