Sinn Féin prepares to take the helm in Northern Ireland. "It's a historic day," said Michelle O'Neill, 47, daughter of an IRA political prisoner who decided to take political action.

Despite the desire for cooperation expressed in the last week by the DUP leader, the formation of the Government and the distribution of portfolios caused last-minute tensions that brought to light the division that persists among the unionists. Sinn Féins president Mary Lou McDonald warned in advance that her party's rise to the helm of Northern Ireland puts the island's unification "within reach"