October 17 in Military History — On This Day

Battle of Neville's Cross

Honouring the Auld Alliance after France's defeat at Crécy, David II invaded England and met an English northern army at Neville's Cross outside Durham. Once again longbows broke the Scottish schiltrons on unfavourable ground; David II, wounded twice in the face by arrows, was captured and held prisoner in England for eleven years.

The capture of the king and a crushing ransom marked the effective end of the second war; when David was finally released in 1357 by the Treaty of Berwick, Scotland's independence — though impoverished — was intact.

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Siege of Sevastopol

The siege of Sevastopol — Russia's principal naval base on the Black Sea — lasted 349 days and became the defining episode of the Crimean War. Russian engineer Colonel Franz Eduard Todleben constructed an extraordinary network of earthworks and bastions that repeatedly repulsed Allied assaults. Both sides suffered catastrophic losses primarily from disease in the cramped, unsanitary conditions. The city finally fell on September 11, 1855, after the French captured the key Malakhov bastion.

The siege demonstrated the inadequacy of both armies' logistical systems, the primacy of defensive earthwork fortifications over assault, and the devastating role of disease in Victorian-era warfare. Florence Nightingale's nursing reforms were triggered directly by the medical catastrophe at the siege's beginning. The fall of Sevastopol humiliated Russia and effectively ended the war.

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⚔️📍 Belgium1918

Allied Forces Liberate Bruges and Ghent — Belgium Free

As the Hundred Days Offensive continued, Allied forces liberated Bruges and then Ghent, freeing major Belgian cities four years after their occupation. German forces were in organized retreat across the whole front.

The liberation of Belgian cities was the culminating symbol of Allied victory; Belgium's complete liberation came just weeks before the armistice ended WWI on November 11.

Outcome

Belgium liberated; armistice follows November 11

OPEC Oil Embargo

Arab oil-producing nations embargo oil exports to countries supporting Israel — primarily the US and Netherlands. Oil prices quadruple from $3 to $12 per barrel. Gas lines stretch for miles across America. European allies distance themselves from US policy. Japan publicly pressures Israel. The weapon that Egypt and Syria could not wield militarily, Saudi Arabia wielded economically.

The oil embargo transformed the Yom Kippur War from a regional conflict to a global economic crisis. It demonstrated that Arab nations possessed economic leverage that could affect Western behavior regardless of Israeli military victories. The shock accelerated the search for energy independence, launched the era of petrodollar recycling, and permanently altered the relationship between the West and the Arab world.

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