Russia is likely to cancel this year’s Moscow air show, which for decades has been a major venue for showing off new warplanes and negotiating aerospace contracts, a top official of its organizing agency said Friday. Viktor Kladov, director for international cooperation at the state-owned defense conglomerate Rostec, was quoted by the state news agency Tass as saying that the show “in all probability” won't take place this year. Kladov did not state a reason for putting off the event, but Russian news media earlier suggested it was due to Western sanctions on Russia connected to the conflict in Ukraine that would shrink international participation and have affected parts supplies to manufacturers.