@Baldimo,
That has nothing to with a defence of anything.
But in our recent history, after the Second World War, the Allies started land reform on German territory in order to exert political influence by dividing large land holdings between large landowners, who were held responsible for the success of National Socialism.
This happened in the US-Zone from from September 19, 1946 onwards.(Law on the acquisition of land for settlement and on land reform, primarily with the social objective of integrating displaced persons and refugees.)
The Germans didn't like it and tried not follow. But under pressure from the US military government, on 18 November 1947 the "Länderrat" (parliamentary body representing the three states in the American zone) adopted a law to accelerate the implementation of land reform.