Imagine close to 50,000 people marching in absolute silence, in five different townships, from two to five hours apart. Not a word, nor even a greeting. Just a raised fist in a sign of strength, determination and unity. Streets overflowing with masked faces and wordlessness. It is a huge demonstration of force–the largest in the entire history of the Zapatista movement–just days before the 19th anniversary of their first public appearance and 30 years since their founding.