On 23 May, the Netherlands celebrates 60 years of bilateral investment treaties (BITs). The first BIT was signed with Tunisia in 1963. These treaties were intended to make an important contribution to protecting foreign investments by Dutch companies. A study by SOMO, Both ENDS and the Transnational Institute (TNI), however, shows that in practice they mainly give multinationals a powerful instrument that has far-reaching consequences people and the environment worldwide.