Asian stocks eked out gains on Monday after seeing Wall Street recover from the latest round of tensions in the Ukrainian crisis, although renewed uncertainty over the volatile conflict put a firm lid on markets. The dollar was on the back foot against the safe-haven yen, weighed by a slide in Treasury yields. Still, with the four-month conflict reaching a critical phase over the weekend – Kiev and Western governments are nervously watching if Russia will intervene in support of the increasingly besieged rebels in eastern Ukraine- risk appetite was subdued.