In Serbia, voting is being held for the post of President along with parliamentary seats. Incumbent President Aleksandar Vucic and his Progressive Party (SNS) is facing an opposition pledging to fight corruption and improve environmental protection.<br />''<br />''The incumbent  President is running for a second five-year term on a promise of peace and stability.<br />''<br />''The opposition largely boycotted a parliamentary election last year, allowing SNS and its allies to secure 188 seats in the 250-seat parliament. Shadow of  Russia's Feb. 24 military operation in Ukraine has had a big impact on campaign in Serbia, which is still recovering from the Balkan wars and isolation of the 1990s. Serbia is almost entirely dependent on Russian gas, while its army maintains ties with Russia's military. <br />