Incoming president Park Geun-Hye, basking in her election as South Korea’s first female leader, promised Thursday to stand tough on national security despite seeking engagement with North Korea. In her first policy address since her historic win on Wednesday.

Park stressed the “grave” security threat posed by the North as underscored by last week’s rocket launch. She also pledged to work for regional stability in Northeast Asia where South Korea, China and Japan are engaged in a series of bitter territorial disputes. “The launch of North Korea’s long-range missile symbolically showed how grave the security situation facing us is,” Park said. 

“I will keep the promise I made to you to open a new era on the Korean peninsula, based on strong security and trust-based diplomacy,” she added. During her campaign, Park had distanced herself from the hardline policy of outgoing President Lee Myung-Bak who suspended major humanitarian aid to the North.

Park had promised a dual policy of greater engagement and “robust deterrence”, and had not ruled out a summit with the North’s young leader Kim Jong-Un, who came to power a year ago. Analysts say she will be restricted by hawks in her ruling conservative New Frontier Party, as well as an international community intent on punishing the North for what it saw as a disguised ballistic missile test.