UPDATE: Russia sets Ukraine agenda with diplomacy, threats

Monday, March 3, 2014 | 7:42 p.m. CST; updated 9:42 p.m. CST, Monday, March 3, 2014

KIEV, Ukraine — Russian troops said to be 16,000 strong tightened their stranglehold on Ukraine's Crimean Peninsula on Monday, openly defying the U.S. and the European Union and rattling world capitals and stock markets.