BANGKOK, Aug 7 (Reuters) - Thailand’s Constitutional Court on Wednesday ordered the dissolution of the anti-establishment opposition party Move Forward, ruling its campaign to amend a law that protects the monarchy from criticism risked undermining the democratic system. The disbanding of Move Forward, which won most seats in the 2023 election, is the latest setback for Thailand’s major political parties, which are embroiled in a two-decade battle for power against a nexus of influential conservatives, old money families and the royalist military.