What is the basis for the disagreement between luther and zwingli

In 1529, Martin Luther and Ulrich Zwingli met at the Marburg convention to bring together Protestant factions.

They disagreed over how reformation of the Catholic Church was possible. Luther believed the ability to reform laid in the gospel and convincing people to change based on the teachings in the gospel while Zwingli wanted to use political means to force changes.

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explanation:

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