By Guy Faulconbridge (Reuters) -Veteran U.S. diplomat Henry Kissinger said the time is approaching for a negotiated peace in Ukraine to reduce the risk of another devastating world war, but the Kyiv government dismissed his comments as amounting to “appeasing the aggressor” and said there could be no deal involving ceding territory. Kissinger, 99, and an architect of the Cold War policy of detente towards the Soviet Union as secretary of state under Republican presidents Richard Nixon and Gerald Ford, has met Russia’s Vladimir Putin multiple times since he first became president in 2000. There…