Zach Polanski in October 2025 (Imageplotter/Alamy) 7 min read50 min The left insurgent party has swelled with those backing its stance on Gaza, but how will the Greens formulate a new foreign and defence policy that will satisfy members and attract swing voters? Harriet Symonds investigates Unilateral nuclear disarmament, diplomacy accented on human rights, global justice and climate change, and rejoining the EU – until recently, these were the pillars of Green Party foreign and defence policy. But the Gaza war, which has seen the party’s support and membership swell because of its stance against the Israeli government, is remaking its outlook. Deep division over fundamental questions like Nato membership and defence spending, combined with a cumbersome policymaking process and a higher level of media scrutiny, seems likely to make the process of formulating a new foreign and defence policy painful. The party’s International Working Group is in the process of conducting a substantial review of foreign policy, with final proposals expected to come before members at the autumn conference if …