Eric and Eliot bemoan the death/murder of Alexei Navalny, Tucker Carlson's performative buffoonery in Moscow, and the irresponsibility of the Republican House of Representatives. They also welcome Phillips O'Brien, professor of strategic studies at St. Andrews University and author of How the War Was Won, The Second Most Powerful Man in the World, and the forthcoming book The Strategists. They discuss the reasons for overestimation of Russia at the beginning of the war in Ukraine, the prospects for Ukraine with and without US aid, what a Ukrainian victory would look like, the situation in Avdiivka, whether Russia is getting stronger or weaker and what a Russian defeat would entail. They also discuss the prospects for the transatlantic alliance if Trump is re-elected, the recent change of command in Ukraine and Phil reflects on what historians bring to the discussion of war today. Shield of the Republic is a Bulwark podcast co-sponsored by the Miller Center of Public Affairs at the University of Virginia.