As stated previously on this page, international and national security are inherently linked. Former U.S. Secretary of State Hillary Clinton has been prominent in highlighting the importance of women in national and thus international security. In what has been referred to as "the Hillary Doctrine", she highlights the adversarial relationship between extremism and women's liberation in making the point that with women's freedom comes the liberation of whole societies. As states like Egypt and Pakistan grant more rights to women, further liberation and stability within such countries will inevitably ensue, fostering greater security throughout the international realm. Along the same lines, Secretary of State John Kerry stated that "no country can get ahead if it leaves half of its people behind. This is why the United States believes gender equality is critical to our shared goals of prosperity, stability, and peace, and why investing in women and girls worldwide is critical to advancing US foreign policy". Elevating women to equal standing internationally will help achieve greater peace and security. This can be seen in both developmental and economic factors, as just two examples among many. Built into American foreign policy is the idea that empowering women leads to greater international development due to their increased ability to maintain "the well-being of their families and communities, drive social progress, and stabilize societies." Female empowerment through economic investment, such as supporting their participation in the workforce, allows women to sustain their families and contribute to overall economic growth in their communities. Such principles must be propagated nationally and globally in order to increase the agency of women to achieve the necessary gender equality for international security.