The Treaty envisaged a new system of Irish self-government, known as "dominion status", with a new state, to be called the Irish Free State. The Free State was considerably more independent than a Home Rule Parliament would have been. It had its own police and armed forces and control over its own taxation and fiscal policy, none of which had been envisaged under Home Rule. However, there were some limits to its sovereignty. It remained a dominion of the British Commonwealth and members of its parliament had to swear an oath of loyalty to the British monarch. The British also retained three naval bases, known as the Treaty Ports. In addition, the Irish state was obliged to honour the contracts of the existing civil service—with the exception of the Royal Irish Constabulary, which was disbanded, albeit with full pensions—payable by the Irish state.