Foreign Minister Kang Kyung-wha said Tuesday that a growing Sino-US rivalry makes South Korea's diplomatic endeavor to firm up relations with the major powers a "very tough task."

Kang delivered a speech on Seoul's response to the "challenging global context," its handling of the new coronavirus and the erosion of multilateralism, as a special speaker for a gathering of Romanian diplomats via video links.

"We are firmly committed to safeguarding and strengthening our security alliance with the US, which has served as a cornerstone of peace and security on the Korean Peninsula, and in Northeast Asia," Kang said.

"But we are also committed to further developing substantial ties in our strategic partnership with China. The growing US-China competition and dwindling space for problem-solving dialogue between them makes this a very tough task," she added.

Kang's remarks came as Seoul is striving to map out a coherent strategy to steer clear of the rising tensions between the great powers, promote cooperation between them and enhance its national interests.

In the face of the great-power rivalry, the minister pointed out that "much leverage lies in our geopolitical position and growing capacities."

"And we are endeavoring to solidify the areas of shared interests with the United States, China and other neighboring countries," she said.

While noting the elements that threaten multilateralism, Kang said "what concerns foreign policy actors the most" is the rising tensions between the major powers, and that the downward spiral in their relations has been "destabilizing" for the international community.

Kang also reiterated Seoul's "firm" commitment to shoring up multilateralism, stressing that her government is "realistic and clear-eyed" in its thinking of the future of multilateralism.

"COVID-19 has exacerbated the divisive trends that undermine multilateral cooperation. But it has also made clear how interdependent and vulnerable we are and the urgency of multilateral action to overcome it and prepare for the next global health crisis," she said.

Touching on the lackluster peace efforts with North Korea, Kang stressed Seoul's "unshaken" belief that peaceful engagement with Pyongyang is "the only way forward."

"The road ahead looks arduous in this effort to get North Korea to completely denuclearize, replace the seven decades old armistice with a formal peace treaty and build a prosperous future for all Koreans, especially when the dialogue is stalled as it currently is," she said. "But we are staying the course."

During a question-and-answer session, Kang stressed the need for countries to continue essential people-to-people exchanges despite the pandemic, as she noted that non-face-to-face diplomacy cannot completely replace in-person diplomacy, according to the foreign ministry.

Before her speech, Kang held telephone talks with Romanian Foreign Minister Bogdan Lucian Aurescu to discuss joint efforts to fight the virus, bilateral relations and cooperation on the global stage.

During the talks, Kang called for Romania's support for South Korean Trade Minister Yoo Myung-hee's campaign for the director-generalship of the World Trade Organization. (Yonhap)