[6] The ULF leader was Oscar Sjölander, a teacher in Kungsängen and a member of parliament of the Social Democratic Labour Party.
He sought assistance from the national headquarters of the Social Democratic Labour Party, LO and SLF for his organizing endeavours in southern Uppland; but received no help from neither of them.
[13][14] ULF was met with criticism not only from the estate owners but also from the Social Democratic press, SLF and the Swedish Trade Union Confederation (LO).
Sjölander did however caution the delegates, arguing that the newly founded union lacked the financial means to mobilize a prolonged strike.
The estate owners were unable to recruit scabs to save the harvest, and thus no violent incidents occurred at the picket lines.
Under pressure from the public opinion (as voiced through Stockholm newspapers), wary of food shortages as a result of the strike, the national government instituted a negotiating commission.
The national LO leadership was represented at the conference (including Arvid Thorberg) as well the leftwing socialist-dominated SLF districts of Närke and Södermanland and the dissident farm workers union in Västmanland-Dalarna (Forest and Farm Workers Union of Central Sweden).
[21][22] At the conference a 'Cooperation Committee' of farm workers was formed, with representatives from Uppland, Sörmland, Närke, Dalarna and Västmanland.
But whilst Sjölander had urged his followers to desist from violence, clashes erupted between striking labourers and scabs (brought in from Stockholm).
In Bro scabs were forced to flee head over heels, in fights that resulted in jail terms for striking labourers.
[27] The outcome of the strike eventually resulted in a backlash for ULF and Sjölander, was they were unable to achieve a favourable bargaining deal.
The 1925 strike figures in several literary works, such as the novel En natt i juli by Jan Fridegård and the novel collection Statarna by Ivar Lo-Johansson.
[31] As of 1920 ULF claimed to have organizers in Gimo, Trögd, Lidingö, Rimbo, Ekerö, Munsö and at the border with Västmanland.
[12] The key areas of ULF activities were located just north of Mälaren, Bro, Håbo, Trögd and Åsunda.
On the islands in Mälaren (such as Adelsö, Munsö, Ekerö, Svartsjölandet and Lovö) ULF had a fairly strong presence.
[31] ULF branches were also found of the southern shore of Mälaren, in northern and western Salem, Västertälje, Botkyrka, Huddinge and Brännkyrka.
[4][8][27] ULF worked closely together with the Workers Educational Association (ABF), setting up mobile libraries for agricultural labourers at farms in the country-side.