Welcome to the international stage, say hi to Psy and then issue a warning about North Korea. South Korea on Monday inaugurated its first female president, Park Geun-hye, who promptly warned North Korea that it will suffer the most if it continues pursuing its nuclear program. Park, 61, is the daughter of Park Chung-hee, who oversaw South Korea’s huge growth on the international stage but was often reviled for his iron-fisted rule. He was assassinated 34 years ago, and his daughter’s election late last year had been carried mainly by older voters who still remembered his glory days. At Monday’s inauguration—which included a performance by “Gangnam Style” rapper Psy—Park promised “economic rejuvenation” of South Korea.