secede from (something or some place)
To withdraw or split off from some nation, company, organization, or other established group as an separate and independent entity. The largely autonomous region has been seeking to secede from the country for years. The king wants to secede from the alliance with France. The band of developers formed their own studio after seceding from the software company last fall.
secede from something
to withdraw from something. Which was the first state to secede from the Union? We do not want to secede from the organization, but we will if we must.