Days after Ukraine launched a surprise military incursion into Russia’s Kursk border region, President Zelenskyy addressed the operation for the first time on Saturday night, indirectly acknowledging ongoing efforts to “push the war out into the aggressor’s territory” in his nightly speech. The incursion into Russian territory, now in its sixth day, marks the largest and most significant operation since the full-scale invasion. The governor of Russia’s city of Kursk reported that a Ukrainian missile shot down by Russian air defences landed on a residential building, injuring 13 people. The unp…