Clare Hollingworth became the Guardian's first female defence correspondent in 1963. Here is her obituary. 'From 1963 until 1967, Hollingworth was defence correspondent for the Guardian – the first woman to hold the post. She had made herself familiar with military hardware over the years, and had a particular interest in aircraft, having learned to fly in the 40s. The new job took her to many of the world’s capitals, reporting on developments in western defence and Nato proposals, but she was also in the thick of post-imperial trouble spots such as Sarawak and Aden.'