The Luxembourg Crisis (German: Luxemburgkrise; French: Crise luxembourgeoise) was a diplomatic dispute and confrontation in 1867 between France and Prussia over the political status of Luxembourg.
The confrontation almost led to war between the two parties, but was peacefully resolved by the Treaty of London.
The Treaty of London (French: Traité de Londres), often called the Second Treaty of London after the 1839 Treaty, granted Luxembourg full independence and neutrality. It was signed on 11 May 1867 in the aftermath of the Austro-Prussian War and the Luxembourg Crisis. It had wide-reaching consequences for Luxembourg and for relations among Europe's great powers.
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