KIEV, April 2 ??“ Ukraine??™s three pro-Western opposition groups called on their supporters to join a massive rally on Tuesday to show support for President Viktor Yushchenko??™s decision to dismiss Parliament.

The group led by former Prime Minister Yulia Tymoshenko, Our Ukraine and the People??™s Self-defense said the rally will also put pressure on the pro-Russian government until the new election is held.

???Starting tomorrow, there will be a stage that will become the sword of Damocles over those who has tried to disrupt democratic election process,??? Yuriy Lutsenko, a former internal affairs minister and the leader of the Self-defense, said Monday.