I thank my right hon. Friend for that reply, and I congratulate him on his great commitment to a global challenge. In the Democratic Republic of Congo, one in four children dies before their fifth birthday. That is a human catastrophe on an almost unimaginable scale. On the administration of the fund, do countries have to sign up, or will the money be distributed through aid budgets? When the fund is administered, will we ensure that the vulnerable children in the most conflict-ridden and fragile states receive the vaccinations that they so desperately need?