Members of the Presidential Security Groups (PSG) use shields and a baton to push back student activists (R) who protested ahead of the International Women's Day at the Malacanang presidential palace ground in Manila on March 6. On March 8 activists around the globe celebrate International Women's day, a holiday that dates back to the beginning of the 20th Century and has been observed by the United Nations since 1975. The UN writes that the holiday is an occasion to commemorate achievements in women's rights and to call for further change. Reuters/Romeo Ranoco