Foreign-owned firms in Zimbabwe were given a deadline of April 1st to comply with a law that requires them to hand 51% of their ownership to “indigenous” citizens. Banks and mining firms are among those affected by the law.
Iran's Supreme Leader, Ayatollah Ali Khamenei, declared that missiles, and not just diplomacy, are the key to Iran's future.
Donald Trump had a bad week. His campaign manager was charged with battery following an encounter with a female reporter last month. Scott Walker and Jeb Bush endorsed Mr Trump's main rival, Ted Cruz, for the Republican nomination. And Mr Trump implied that women should be punished for abortion if it becomes illegal (which he hastily retracted). The Republican front-runner also backtracked on his pledge to support the party's nominee if he fails to win, complaining that he isn't being treated fairly.
The Republican governor of Georgia, Nathan Deal, announced that he will veto a bill that would allow religious organisations to withhold the provision of services from gay people. Conservatives were furious, blaming a lobbying campaign from big businesses, which worry that the bill tarnishes Georgia's reputation.
America's Supreme Court ruled 4-4 in a case that sought to stop unions taking fees from workers who do not want to pay their dues despite benefiting from collective-bargaining actions. The court's split decision means that the law stands as it is, a deep disappointment to conservatives who were sure they would triumph when arguments were heard in January, before the death of Justice Antonin Scalia. Republicans are still refusing to hold hearings to confirm Scalia's nominated successor, Merrick Garland.
Ukraine's parliament dismissed the country's prosecutor-general, Viktor Shokin, after months of pressure from international donors who faulted him for refusing to act against corruption. Shortly before his dismissal Mr Shokin in turn had fired his popular, pro-reform deputy. A new nominee for prime minister, Volodymyr Groysman, is seeking allies to form a majority in parliament that would allow the unpopular Arseniy Yatsenyuk to step down.
Radovan Karadzic, the leader of the Bosnian Serb side in the Bosnian war of 1992-95, was found guilty of genocide and war crimes by an international criminal tribunal in The Hague. He was sentenced to 40 years in prison. The conviction instantly sparked a bitter row between the leader of Serbia and the Bosniak (Muslim) leader of Bosnia. Vojislav Seselj, a Serbian nationalist and ally of Slobodan Milosevic, Serbia's president at the time, was cleared in The Hague of committing war crimes.
In Turkey the German ambassador was summoned twice in one week after a satirical song about President Recep Tayyip Erdogan, entitled “Erdowi, Erdowo, Erdogan”, was shown on German television. The incident hints at tensions between the two countries, which are both key to solving the refugee crisis in Europe.