US President Joe Biden is meeting NATO and EU leaders in Brussels on Thursday in a show of trans-Atlantic unity exactly one month after the start of Russia’s war in Ukraine. Biden joins Western allies for a special meeting of NATO leaders, a G7 summit and an EU leaders’ summit for talks on how to support the Ukrainian people, how to further punish Russia and the long-term changes necessary to ensure Europe’s security. A proposal to strengthen NATO’s eastern flank with permanent troop deployments, supported by air and naval power, is still on the table. The move would mark a violation of the NA…