Milan's La Scala also sent a letter to Gergiev asking him to declare his support for a peaceful resolution in Ukraine or he would not be permitted to complete his engagement conducting Tchaikovsky's "The Queen of Spades." This follows an announcement by New York City's Carnegie Hall that it had canceled two May performances by the Mariinsky Theatre Orchestra that were to be conducted by Gergiev and the Vienna Philharmonic dropped Gergiev from a five-concert tour in the U.S. that was to start on 25 February.[237]