Complex sentence: The International Federation of Shipmasters'Associations (IFSMA) was formed by eight National Shipmasters' Associations and formally constituted in 1974, in Rotterdam with the aim to unite the world's serving Shipmasters into a single non-profit making international professional organisation.
Split into simpler sentences: The International Federation of Shipmasters'Associations (IFSMA), is the international professional organisation that unites and represents the world's serving Shipmasters. In 1974 IFSMA was formed by eight National Shipmasters'Associations with the aim to unite the world's serving Shipmasters into a single non-profit making international professional organisation.