Complex sentence: In some countries, particularly those in the Arab world, political unrest evolved into socioeconomic crises, which set off numerous revolutions, including those in Kyrgyzstan and Tunisia in 2010, and Libya, Syria, Yemen, and Egypt in 2011 and 2012.
Split into simpler sentences: In some countries, particularly those in the Arab world, political unrest evolved into socioeconomic crises. This set off numerous revolutions, including in Kyrgyzstan and Tunisia in 2010, and Libya, Syria, Yemen, and Egypt in 2011 and 2012.