According to Europol Chief Rob Wainwright, the threat of terrorism has become “extremely difficult.” However, he said the police’s resolve to combat and prevent terrorism is still high.
“We are dealing with a very serious threat spread around many European countries and propagated by thousands of suspects radicalised on the internet and through conflict experience in Syria and Iraq.
“It is clearly an urgent and serious challenge we face now.
“The scale of the problem has increased over the last 10 years. But over the last ten years the sophistication of the police response has increased too.
“The public can be reassured by the determined response by the security authorities.
“Across Europe, we are engaged in quickly exchanging intelligence. Significant amounts of work are being done.
“Stopping everything is very difficult, containing the threat wholly is very difficult but I am sure we will prevail.”
His statement comes after last week’s attack on Paris’ Charlie Hebdo offices, which killed 12 famed cartoonists including its editor.
Meanwhile, British Prime Minister David Cameron and US President Barack Obama said that Britain and America will join forces to counter the “poisonous and fanatical ideology” of extremists.
Cameron said: “Frankly, we’ve been in this struggle against extremist Islamist terrorism for well over a decade-and-a-half so we know what it takes to win, and it’s going to take a lot of perseverance.”