The acceptance of federalism in place of separatism by the VU in the 1970s did not sit well with the party 's right - wing .
A split became inevitable , particularly after the party entered the coalition government of Leo Tindemans ( CVP , Christian - Democrat ) .
The acceptance of federalism in place of separatism by the VU in the 1970s did not sit well with the party 's right - wing and a split became inevitable , particularly after the party entered the coalition government of Leo Tindemans ( CVP , Christian - Democrat ) .