Tanzania has become the latest African nation to sign on to Washington’s controversial health financing initiative, sealing a deal that had stalled for months after the United States signalled it was reassessing ties with Dar es Salaam over last October’s post-election violence. The memorandum of understanding, signed late Wednesday, commits the U.S. to investing more than $1.3 billion in Tanzania’s health sector over the next five years. Tanzania had notably been left out when Washington signed similar agreements with more than a dozen African countries late last year.