The 'Celies un ej' campaign was initiated in Latvia to mobilize support for Latvian as the only state language during a referendum held on February 18, 2012. Despite initial voter apathy, the campaign successfully unified various organizations and individuals to promote participation, resulting in a turnout of 71.12% and 74.8% support for Latvian. This referendum recorded the highest participation since Latvia's independence, emphasizing the campaign's effective communication and mobilization strategies.