After the Luxembourg Crisis of 1866 nearly led to war between Prussia and France, as both were unwilling to see the other taking influence over Luxembourg and its mighty fortress, the Grand Duchy's independence and neutrality were reaffirmed by the Second Treaty of London and Prussia was finally willing to withdraw its troops from the Fortress of Luxembourg under the condition that the fortifications would be dismantled. That happened the same year. At the time of the Franco-Prussian war in 1870, Luxembourg's neutrality was respected by the North German Confederation, and neither France nor Germany invaded the country.