French Taxi drivers burn tires as they protest in the southern city of Marseille on June 25, 2015 as they demonstrate against UberPOP, a popular taxi app that is facing fierce opposition from traditional cabs.
Anne-Christine Poujoulat—AFP/Getty Images
1 of 10
Police officers in riot gear attempt to flip a car back onto it's wheels at Porte Maillot on June 25, 2015 in Paris. Protesters blocked roads to airports and train stations, overturning cars and setting tires on fire.
Guillaume de Senneville—Demotix/Corbis
2 of 10
Hundreds of taxi drivers gather next to the Olympia Stadium to protest ride-sharing apps on June 11, 2014 in Berlin.
Sean Gallup—Getty Images
3 of 10
A demonstrator kicks a car, suspected of being a private taxi during a 24 hour taxi strike and protest in Madrid on June 11, 2014.
4 of 10
A taxi driver listens to speeches by his colleagues, during an Europe-wide protest of licensed taxi drivers against taxi hailing apps that are feared to flush unregulated private drivers into the market, in front of the Olympic stadium in Berlin on June 11, 2014.
5 of 10
Taxi drivers hold a banner during a protest in Barcelona on June 11, 2014.
Josep Lago—AFP/Getty Images
6 of 10
London taxi's line up on The Mall during a protest against a new smart phone app, 'Uber' on June 11, 2014 in London.
Dan Kitwood—Getty Images
7 of 10
Taxi drivers park their cars and honk the horn in protest on Pennsylvania Avenue, bringing street traffic to a stop as they demand an end to ride sharing services such as Uber X and Lyft on June 25, 2014, in Washington.
PAUL J. RICHARDS—AFP/Getty Images
8 of 10
An Italian taxi driver distributes leaflets reading "Don't take an illegal taxi, take a white regular taxi" during a protest on June 11, 2014 in Rome.
ANDREAS SOLARO—AFP/Getty Images
9 of 10
Taxis drivers block a highway outside Paris, near Roissy on June 11, 2014, as they take part in a demonstration to protest the growing number of minicabs, known in France as Voitures de Tourisme avec Chauffeurs (VTC).
Fred Dufour—AFP/Getty Images
10 of 10
Updated: June 25, 2015 10:56 AM ET | Originally published: December 8, 2014 3:59 PM EST
The Leadership Brief. Conversations with the most influential leaders in business and tech.
For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.