Complex sentence: The European Union battlegroups is a project done in the context of the European Security and Defence Policy, its aim being the creation of several rapidly deployable units for international intervention and tasks reaching up to full-combat situations.
Split into simpler sentences: The European Union battlegroups is a project done in the context of the European Security and Defence Policy. Its aim being the creation of several rapidly deployable units for international intervention and tasks reaching up to full-combat situations.