In the early 1920s, riven by rivalries between its classical liberal and progressive wings, the party collapsed.
[1] The main aim of this alliance was to ensure and extend the secularism of the state, which they saw as being under attack from the overtly Roman Catholic conservative grouping; secularisation of the school system was the major policy on which they fought the elections of 1908, 1911, and 1912.
Similarly, neither did his cabinet ministers, which would have major repercussions for the party after Eyschen's death, in 1915.
The informality of the arrangement would lead to the collapse of the liberal-led governments of Mathias Mongenast and Victor Thorn; the former was forced out by Grand Duchess Marie-Adélaïde, whilst the former was brought down by a cross-party motion of no confidence.
Despite these reverses, the Liberal League still maintained considerable power in the Chamber of Deputies until the end of the German occupation.