Today on “Post Reports,” we head to Lithuania, host of a pivotal NATO summit this week. Plenty is at stake, including the possible expansion of NATO and the biggest question of all: how to support Ukraine while keeping it outside of the alliance.Read more:As tensions build between the West and Russia, world leaders met in Lithuania this week for the annual NATO summit. The Post’s Brussels bureau chief, Emily Rauhala, brings us her reporting from the meeting and breaks down how the Biden administration and NATO allies are navigating their support for Ukraine.