Reaffirming the commitments to gender equality and the advancement of women made at the Millennium Summit , the 2005 World Summit , the high-level plenary meeting of the General Assembly on the Millennium Development Goals , the special event of the General Assembly to follow up efforts made towards achieving the Millennium Development Goals and other major United Nations summits , conferences and special sessions , and reaffirming also that their full , effective and accelerated implementation is integral to achieving the internationally agreed development goals , including the Millennium Development Goals , Welcoming progress made towards achieving gender equality , but stressing that challenges and obstacles remain in the implementation of the Beijing Declaration and Platform for Action and the outcome of the twenty-third special session , Noting that the year 2015 marks the twentieth anniversary of the Fourth World Conference on Women and the adoption of the Beijing Declaration and Platform for Action , and welcoming the efforts of the United Nations Entity for Gender Equality and the Empowerment of Women ( UN-Women ) to commemorate this occasion , Recognizing that the responsibility for the implementation of the Beijing Declaration and Platform for Action and the outcome of the twenty-third special session rests primarily at the national level and that strengthened efforts are necessary in this respect , and reiterating that enhanced international cooperation is essential for full , effective and accelerated implementation ,