Original sentence: Here he very much favored such “realpolitik” actions as the violation of Danish neutrality, in case of war with Great Britain, by immediately occupying  the waterways of the Danish archipelago (The Belts) to deny the British navy access to the Baltic Sea and Russia
Edited sentence: In this position he expressed his concern for what he saw as Germany's hopeless situation with a weak navy and facing Britain in isolation.One solution he saw an alliance with the United States, which was already a valuable trading partner of Germany.he also favored such “realpolitik” actions as the violation of Danish neutrality, in case of war with Great Britain, by immediately occupying  the waterways of the Danish archipelago (The Belts) to deny the British navy access to the Baltic Sea and Russia