When their Protestant city alliance was dissolved, Zürich and the southern German cities joined the Schmalkaldic League, but in the German religious wars of 1546/47, Zürich and the other Swiss Protestant cantons remained strictly neutral.
Ketika aliansi kota Protestan mereka dibubarkan, Zürich dan kota-kota Jerman selatan bergabung dengan Liga Schmalkaldik, tetapi dalam perang agama Jerman 1546/47, Zürich dan provinsi yang beragama Protestan Swiss lainnya tetap netral.