Key developments on April 29: Attack on Odesa kills 4, injures 29 Military intelligence: Over 18,000 Russian troops of Southern Military District have deserted Military: Ukraine regaining control over Nestryha Island in Kherson Oblast complicates Russian advances NATO Secretary-General Stoltenberg in Kyiv in surprise visit Air Force: Poland capable of protecting skies over western Ukraine but political will needed At least four people were killed and 29 were injured in a Russian missile strike on Odesa that damaged civilian infrastructure, the State Emergency Service reported on April 29. Three women and one man were among the dead, Odesa Oblast Governor Oleh Kiper said.