Regional News  Russia continues to build its troop presence on the border with Ukraine and has mobilized some 170,000 troops to the region. That is 70,000 more troops than were on the border during last year’s spring build-up. Presidents Putin and Biden are expected to talk Tuesday, but few expect the Russian president to back down on the increasing military presence near Ukraine.  Ukraine’s 2021/22 grain exports total 26.08 MMT, up 17 percent YTD, including 14.6 MMT of wheat and 6.21 MMT of corn. Forecasts are for the country’s 2021/22 grain export program to reach 62.4 MMT, up 39 percent from the prior year.  Russian wheat exports are down 17 percent YTD at 18 MMT, through 25 November.  Milling Wh...