This paper described the formal collaboration between the American Heart Association's Council on Cardiovascular Nursing and the European Society of Cardiology's Working Group on Cardiovascular Nursing. This collaboration comprises following dimensions: (1). further expansion on collaboration on annual conferences; (2). development of mentoring initiatives; (3). initiation of research collaboration; (4). development of joint guidelines; and (5). appointment of liaison persons of AHA to ESC and vice versa.