LONDON (MarketWatch) -- More political unrest looks likely for Italy after the country's main trade unions said Monday they will strike in protest against the government's 2014 budget plans. The three big union confederations -- the UIL, CGIL and CISL -- said their members will hold four-hour walkouts, the Gazetta del Sud reported. Prime Minister Enrico Letta has been criticized by both business and labor leaders over the budget plan, which did not deliver the tax cuts they wanted. "Everything stays the same. He shouldn't have done a budget to stabilize the government. He should have done one to stabilize the country," UIL union chief Luigi Angeletti said, according to a Reuters report. Letta recently won a parliamentary vote of confidence called by former Prime Minister Silvio Berlusconi that threatened to destabilize the fragile ruling coalition. Berlusconi himself is fighting to retain his political influence, after a Milan court banned the People of Freedom (PDL) leader from public office for two years. The FTSE MIB index on Monday traded 0.2% higher at 19,305.90.