BRUSSELS — Workers across the European Union sought to present a united front against rampant unemployment and government spending cuts Wednesday with a string of strikes and demonstrations across the region.

However, while austerity-hit countries such as Spain and Portugal saw a high turnout of striking workers, wealthier countries like Germany and Denmark experienced only piecemeal action.

To combat a three-year financial crisis over too much debt, governments across Europe have had to cut spending, pensions and benefits and raise taxes. As well as hitting income and living standards, these measures have also led to a decline in economic output and rapidly rising unemployment.