By Stefano Rebaudo (Reuters) -The dollar rose on Monday along with the yen and Swiss franc as investors rushed into safe-haven assets on fears that Russia is preparing to invade Ukraine. Russia could make such a move at any time and might create a surprise pretext for an attack, according to the United States, which reaffirmed on Sunday a pledge to defend “every inch” of NATO territory. Moscow denied any such plans and has accused the West of “hysteria”. The dollar index rose 0.4% to 96.328, its highest since Feb. 1. Euro-dollar one-month implied volatility was at 7.6%, from below 6% at the en…

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