>The U.S. did one test shot I'm seeing 11 shots total,[0] though Wikipedia lists even more. "Nine were for the purpose of developing an ultra-low fission ther

>The U.S. did one test shot I'm seeing 11 shots total,[0] though Wikipedia lists even more. "Nine were for the purpose of developing an ultra-low fission thermonuclear explosive for use in nuclear excavation projects and one each was for the development of special emplacement techniques and for a small diameter, ultra-low tritium producing explosive for hydrocarbon applications such as Rio Blanco." [0] Table 1 on page 7 (PDF page 11) https://www.osti.gov/servlets/purl/408695 https://www.osti.gov/servlets/purl/408695