SUI country designation confuses Americans before bronze beach volleyball match

When it was decided that Joana Heidrich and Anouk Vergé-Dépré would play for bronze in beach volleyball, many Americans began to scratch their heads. The US world class duo Ross / Klinemann beat a duo from a country called SUI. Which country is that?

Since the beach volleyball semifinals on Wednesday, this question has apparently been googled excessively in the USA: “Which country is SUI?” SUI seems to have confused American Olympic fans, according to Google Trends.