Leaders of the Group of 7 nations – G7 – have pledged to work together to step up the fight against terrorism. They signed a declaration on countering terrorism and violent extremism at their summit on the Italian island of Sicily.<br/><br/>The statement expresses condolences to the families of the victims of the terrorist attack in Manchester, U. It says the fight against terrorism is a major priority and the G7 will raise it to a higher level. The leaders also pledged to enhance efforts to counter the misuse of the internet by terrorists, and called on internet service providers and social media firms to substantially increase their efforts to address terrorist content. The leaders are expected to release a separate joint statement summarizing their discussions.<br/><br/>Meanwhile, the six other nations of G7 agreed to affirm their commitment to the Paris climate agreement, while awaiting a decision by the Trump administration as to whether the U.S. will stay in the pact. <br/><br/>President Trump said he had not yet decided whether or not to endorse the Paris agreement on reducing greenhouse gas emissions. Leaders from five African nations also joined the world power leaders to discuss their continent's potential.Tunisia, Kenya, Ethiopia, Niger and Nigeria have taken part in the discussions.