The proposed spending, under the 2021-2027 budget, is an increase from the current security funding, which is €3.5bn.

The bloc said that with threats more “complex and international in nature”, the funds can help the union become more resilient to future security challenges and better equipped to respond to emergencies.

Frans Timmermans, first vice-president, said: “Feeling safe at home or when walking down the street is one of the most basic human rights.

“Europeans expect their governments and their union to provide that safety. More flexible security funding tailored to the specific needs of member states will ensure that Europeans can be better protected, as they rightly should be.”

The Commission will more than double the funding for the Internal Security Fund, which supports member states in the area of security, from €1bn to €2.5bn.

This includes €1.5bn allocated to helping member states build long-term security resilience and €1bn to tackle unforeseen security challenges.

For the 2021 to 2027 period, the bloc will allocate €118m for nuclear decommissioning in Bulgaria and Slovakia, and €552m for Lithuania.

Another €348m will be given to the European Commission’s nuclear research facilities and €160m will support general nuclear safety and safeguards.

Commissioner for the Security Union Julian King said: "We need to build a robust response to the multi-dimensional, cross-border and constantly-evolving security threats we face from terrorists and criminals – one that doesn't duplicate member states' efforts, but rather complements them by connecting the dots both within the EU and beyond.”

The European Union set out its budget for 2021 to 2027 last month, focusing on sound financial management with an aim to do “more for less”.

Earlier this month, the European Court of Auditors said in a report that the commission was failing to demonstrate the effectiveness of counter-radicalisation measures funded by the bloc in member states.