Complex sentence: The two parties agreed to hold elections, but to alternate power between the two parties, regardless of the election results, which enabled a consolidation of power amongst Colombian Conservative and Liberal elites, while simultaneously strengthening the military and preventing radical political alternatives and popular reforms.
Split into simpler sentences: The two parties agreed to hold elections, but to alternate power between the two parties, regardless of the election results. This enabled a consolidation of power amongst Colombian Conservative and Liberal elites, while simultaneously strengthening the military and preventing radical political alternatives and popular reforms.