If humanity and the powers that be really care about the world's people - all the peoples, then there are three areas that require immediate action and a solution to lingering questions - Palestine, Syria and Yemen.
Palestine should be allowed to achieve full sovereignty and a return of lands taken in the 1967 war. The blockade of Gaza must end and settlements on Palestinian lands should be dissuaded and removed.
The peace of Syria has to be won and the security of returning Syrians should become a priority of all armed forces operating in the Levant.
Yemen's children should be saved from further starvation and violence, thus the war must end.
These are three pressing affairs of humanity that need to be addressed immediate. Until these affairs are answered, conflict will continue to be bothersome within the areas under the risk of transcending to wider borders over due time.