Complex sentence: The last known major action for the Lion Guard was its urging for members to report to the 2016 Republican National Convention, if possible with weapons due to Ohio's open carry laws and the "danger of insurrection".
Split into simpler sentences: The last known major action for the Lion Guard was its urging for members to report to the 2016 Republican National Convention. The group further urged its members to to arm themselves, in accordance with Ohio's open carry laws, due to the "danger of insurrection".