Final answer:
The UNO responded with military intervention. On June 27, 1950, the UN Security Council issued Resolution 83, which called on UN members to resist North Korean aggression and help South Korea defeat the invading forces.
Step-by-step explanation:
The response of the United Nations Organization (UNO) to the events in Korea in June 1950 was option a) The UNO responded with military intervention. On June 27, 1950, the UN Security Council issued Resolution 83, which called on UN members to resist North Korean aggression and help South Korea defeat the invading forces.