What is the greatest risk Germany took by establishing this policy wasting its energy chasing down passenger ships harming innocent people and making new enemies angering the British by denying them w?

The greatest risk Germany took by pursuing aggressive submarine warfare was the potential for escalating tensions with neutral nations, particularly the United States, which could lead to broader conflict. By targeting passenger ships and harming civilians, Germany not only alienated potential allies but also galvanized public opinion against it, ultimately contributing to its isolation in the war. This strategy undermined diplomatic relations and intensified the resolve of its enemies, particularly Britain, further complicating Germany's military position.