Then , in the 1980s , more American tourists visited Mexico , discovering tequila .
Tequila made further advances in the US during World War II , when many US distilleries switched to war - related production and there were restrictions on European imports .
In the 1980s , more US tourists visited Mexico , discovering tequila .
Tequila made further advances in the US during World War II , when many US distilleries switched to war - related production and there were restrictions on European imports .