"Heartland" is probably a reference to the heartland theory by Halford Mackinder (http://en.wikipedia.org/wiki/Heartland_Theory). In short:
"Who rules East Europe commands the Heartland;
who rules the Heartland commands the World-Island;
who rules the World-Island controls the world."
The phrase "Heartland make the places mine" especially.
"Heartland" is probably a reference to the heartland theory by Halford Mackinder (http://en.wikipedia.org/wiki/Heartland_Theory). In short: "Who rules East Europe commands the Heartland; who rules the Heartland commands the World-Island; who rules the World-Island controls the world."
The phrase "Heartland make the places mine" especially.