his old comrades will invade. but if they do, he's telling his flock to stand and fight. >> translator: i will preach to defend our homeland of any invader. this is the land of our grandfathers. if they need me, i'm ready to join them to protect our homeland. >> reporter: he's brought his 3-year-old grandson alexi for communion. sop igor is an army reservist. if conflict comes, he'll be on the front line. >> translator: every mother worries when her son is mobilized. we understand our young men have to protect the homeland. it's painful that our sops must go to war in the 21st century. so we're praying for peace. >> reporter: but faith does not only lie in divine hands. in a nearby potato field, ukraine troops man a mobile radar station. the command is not authorized to