Complex sentence: Battling for an improvement in mine workers'conditions, he attended a trade union congress in November 1902 and moved for nationalisation of the coal mining industry, believing it would' eliminate cut-throat competition between owners that depressed miners'wages and conditions'.
Split into simpler sentences: Battling for an improvement in mine workers'conditions, he attended a trade union congress in November 1902. Here he moved for nationalisation of the coal mining industry, believing it would' eliminate cut-throat competition between owners that depressed miners'wages and conditions'.