Complex sentence: Despite the formation of the two parties, there were no major ideological differences between them and their policies were similar, especially with regards to non-alignment, although the "Stable" faction favoured industrialisation and the "Clean" faction spoke more of agricultural development.
Split into simpler sentences: Despite the formation of the two parties, there were no major ideological differences between and their policies were similar, especially with regards to non-alignment. Although the "Stable" faction favoured industrialisation, the "Clean" faction spoke more of agricultural development.