Complete the passage: pick from possible candidates.

Simferopol, Ukraine (CNN) -- Hostilities intensified in Crimea on Saturday as Ukrainian officials accused pro-Russian forces of armed aggression and President Barack Obama rounded up world leaders to demand Russia "de-escalate the situation." Obama called British, French and Italian leaders and hosted a conference call with the presidents of Lithuania, Latvia and Estonia, the White House said. "All of the leaders agreed on the need for Russia to pull its military forces back to their bases, allow for the deployment of international observers and human rights monitors to the Crimean peninsula, and agree quickly on the formation of a contact group that could lead to direct dialogue between Ukraine and Russia to de-escalate the situation and restore Ukraine's sovereignty and territorial integrity," a White House statement said.



OPTIONS:
- Barack Obama will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- British will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- CNN will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Crimea will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Crimean will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Estonia will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- French will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Italian will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- John Kerry will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Latvia will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Lithuania will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Obama will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Poland will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Russia will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Russian will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Sevastopol will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Simferopol will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Ukraine will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- Ukrainian will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- White House will continue down a diplomatic path, he said, and will not respond to Russian "provocations."
- pro-Russian will continue down a diplomatic path, he said, and will not respond to Russian "provocations."


Ukraine will continue down a diplomatic path, he said, and will not respond to Russian "provocations."