US, Russia talks fail to end Ukraine deadlock

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In this March 27, 2014, photo, Secretary of State John Kerry attends a reception for U.S. companies based in Italy that are donors and potential donors for a USA Pavillion at the Milan Expo 2015, in Rome. Halfway home from Saudi Arabia, Kerry has abruptly changed course and will stay in Europe for talks on Ukraine. Flying from Riyadh to Shannon, Ireland, for a refueling stop on Saturday, Kerry decided to turn his plane around and will now travel to Paris for a meeting with Russian Foreign Minister Sergey Lavrov, likely on Monday. (AP Photo/Jacquelyn Martin, Pool)

PARIS (AP) — The U.S. and Russia are advancing far different proposals on how to calm tensions and de-escalate the crisis in Ukraine as Russia continues to mass troops along its border with the former Soviet republic.

U.S. Secretary of State John Kerry Sunday called for Moscow to begin an immediate pullback of the troops. He also ruled out discussion of Russia's demand for Ukraine to become a loose federation until and unless Ukrainians are at the table.

While the United States and Russia agreed that the crisis in Ukraine requires a diplomatic resolution, four hours of talks Sunday between Kerry and Russian Foreign Minister Sergey Lavrov failed to break a tense East-West deadlock over how to proceed.