For the first time in 30 years, Belgian military have now been engaged to reinforce police in the cities of Belgium guarding possible terrorism targets across the country.
According to the Belgian Defense Minister Steven Vandeput, some 150 troops have been deployed in Brussels and the port city of Antwerp while their number could double if needed.
Among possible targets which have now been provided additional guards are the embassies of the US, UK and Israel, EU institutions and the Jewish quarter in Antwerp.
Belgian military have also been deployed near the eastern city of Verviers, where police killed two suspects and arrested several more in an anti terrorism raid on Thursday, January 15, 2015.
Belgian media reports that investigators are still looking for a Belgian with Moroccan roots who had gone to fight with the Islamic State group in Syria, and was said to be in Greece.
Belgium called for military support in protecting population of big cities last time in mid-1980s when a left-wing terrorist groups detonated a series of bombs in Belgium. It is reported that the soldiers can use their arms given the higher threat level announced by the Belgian government.