The draining of one of Europe’s largest reservoirs as a result of the destruction of the Kakhovka dam has revealed submerged military objects that offer a reminder of wars past and present on Ukrainian soil. On a drizzly morning near the southern city of Zaporizhzhia, a team of divers and underwater demining experts from Ukraine’s State Emergency service grappled on Monday with the steering element of a S-300 missile. It had fallen in the water since Russia’s full-scale invasion and was caked in algae and soil. The missile fragment had been spotted in shallow water on Saturday by a local...