On the 22nd of October, Crisis Day 7: Kennedy implemented the Cuban Quarantine. The Soviets were surprised by America’s response and felt that America’s opposition to missiles being established in Cuba was a double standard given that the U. S. had similar missiles [Jupiters] positioned in Turkey. Russia ordered submarines to defend Soviet missile transports en-route to Cuba. On the 24th of October, Crisis Day 9: The Soviet ships halted short of the blockade, but did not turn around. On the 25th of October, Crisis Day 10: the Soviet delegation to the United Nations, confronted with evidence of their missiles in Cuba, denied their presence. On the 26th of October, Crisis Day 11: Khrushchev sent a teletype to Kennedy to avoid deepening the crisis, but with no resolution offered in the message. On the 27th of October, Crisis Day 12: Khrushchev sent a follow-up message with tough demands in exchange for withdrawal of Cuba’s Soviet missiles. These demands included: 1) U.S. must pledge to never invade Cuba, and 2) U.S. must remove missiles from Turkey. Kennedy mobilized U. S. troops in a show of force. A U- 2 flying over Cuba was shot down. Its pilot, Major Anderson, was killed. Kennedy refuses a contingency plan to retaliate in order to prevent escalating the crisis even further.