[Sidenote: First Peace of Cappel] The terms of this first Peace of Cappel forced the Catholics to renounce the alliance with Austria, and to allow the majority of citizens in each canton to decide the religion they would follow.

Toleration for Protestants was provided for in Catholic cantons, though toleration of the old religion was denied in the Evangelical cantons.
This peace marked the height of Zwingli's power.

He continued to negotiate on equal terms with Luther, and he sent missionaries into Geneva to win it to his cause and to the Confederacy.

The Catholic cantons, stung to the quick, again sought aid from Austria and raised another and better army.

[Sidenote: Defeat of Zwingli] Zwingli heard of this and advocated a swift blow to prevent it--the "offensive defence." Berne refused to join Zurich in this aggression, but agreed to bring pressure to bear on the Catholics [Sidenote: May 1531] by proclaiming a blockade of their frontiers.