“The Emperor Maximilian arrives in Mexico City,” by Richard Cavendish, in History Today, Vol. 64, Issue 6 (June 2014), pp. 8-9
“…In an alliance Napoleon organised in 1861, troops from Britain, Spain and France landed at Veracruz in Mexico to demand payment of the government's debts, but when the British and the Spanish realised that the French meant to conquer Mexico they left. French reinforcements arrived and launched a civil war, which is thought in the end to have cost some 50,000 lives. They drove Juarez and his people out of Mexico City in 1863 and further victories followed. Napoleon had now selected the Archduke Maximilian as a useful puppet to install on the Mexican throne…”