On 2 August 2024, on behalf of His Excellency Deputy Prime Minister, Minister of Foreign Affairs and International Cooperation, His Excellency SEA Kosal, Permanent Secretary of State led a delegation of the Ministry to pay tribute to the late Brig. Gen. Sun Phalla and Lt. Col. Kheng Chhay Yuth of the Royal Cambodian Air Force, who lost their lives in a helicopter crash during a training mission on 12 July 2024, at Pochentong Air Force Base in Phnom Penh.