LONDON (AP) — Former British Prime Minister Liz Truss will join the former leaders of Australia and Belgium at a conference in Tokyo later this month to call for a tougher international approach to China.

The Inter-Parliamentary Alliance on China, an international group of lawmakers concerned about how democratic countries approach Beijing, said Friday that Truss will speak alongside former Australian Prime Minister Scott Morrison at the Feb. 17 event in the Japanese Diet. Former Belgian Prime Minister Guy Verhofstadt, who is also a European Parliament lawmaker, will attend as well.

Conference organizers hope the event would help spur more coordinated diplomacy on threats raised by China ahead of the next Group of Seven richest democratic countries’ summit, scheduled in May in Hiroshima.

Truss is expected to address growing concerns over Beijing’s threats to Taiwan, which China claims as its own territory. Morrison will call for more targeted sanctions against Chinese officials for serious human rights violations, while Verhofstadt will speak about the European Union’s role in maintaining international rules under pressure from Beijing.

“The scale of the challenge posed by the People’s Republic of China is such that we all need to rise above our differences and come together to defend our fundamental values and interests,” Verhofstadt said in a statement.

The three former leaders will address about 40 Japanese lawmakers as well as legislators from the U.K., Canada, the European Union and Taiwan. Senior Japanese ministers are also expected to attend.

Truss has kept out of the public eye since she quit as Conservative British prime minister in October after just 45 days in office, following an ill-conceived economic plan she unveiled that triggered a political and financial crisis.

As foreign secretary she was outspoken in criticizing China, advocating stronger ties between democracies so they can counter China and Russia more effectively. She had suggested that the U.K. should work with its allies to ensure Taiwan could defend itself against Chinese military aggression.

Her successor, current British Prime Minister Rishi Sunak, has rejected “grand rhetoric” against China and wants a more “pragmatic” relationship with Beijing. While he has called China’s growing authoritarianism a “systemic challenge,” he stopped short of describing China as a threat to British security and said the U.K. and its allies needed to engage Beijing in diplomacy.

Western countries are rethinking their relationship with Beijing after Russia’s invasion of Ukraine, but the U.S., Britain and the EU’s 27 member states have disagreed with each other over how to approach an increasingly assertive China.

In November, German Chancellor Olaf Scholz was criticized by both his European partners and his own coalition government when he led a delegation of senior business leaders to visit Beijing.

Critics said the bilateral visit undermined unity among EU leaders, who discussed reducing their heavy economic dependence on China during a Brussels summit in October. While Scholz said there should be recognition that China was increasingly a competitor and systemic rival, he also warned against decoupling ties.

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