P&O Nedlloyd Container Line Limited was an Anglo-Dutch worldwide ocean-going container shipping line, with dual headquarters in London and Rotterdam. The company was formed in 1997 by the merger of the container-shipping interests of Dutch transportation company Royal Nedlloyd (Nedlloyd Line) and the British maritime shipping giant P&O Group (P&O Containers).In 2004, Royal Nedlloyd bought the remaining shares from P&O and the company was listed as Royal P&O Nedlloyd on the Dutch stock exchange. Royal P&O Nedlloyd was acquired by the Danish A.P. Moller-Maersk Group (Maersk) in 2005 and was combined with their existing container shipping business Maersk-Sealand to form Maersk Line. As Sealand was the US-based historic innovator of container shipping, Maersk Line subsequently embodies the Dutch, British as well as Danish and American merchant marine legacy.