The Triple Entente between Britain, France and Russia is often compared to the Triple Alliance between Germany, Austria–Hungary and Italy, but historians caution against the comparison. The Entente, in contrast to the Triple Alliance or the Franco-Russian Alliance, was not an alliance of mutual defence and Britain therefore felt free to make her own foreign policy decisions in 1914. The Liberals were highly moralistic, and by 1914 they have been increasingly convinced that German aggression violated international norms, and specifically that its invasion of neutral Belgium was completely unacceptable in terms of morality, Britain and Germany's obligations under the Treaty of London, and in terms of British policy against any one power controlling the continent of Europe.