LONDON - Ever since America's Meghan Markle married Britain's Prince Harry, there have been questions about how outspoken the self-proclaimed feminist would be. Would she be Britain's first "woke princess"? How much would she rein in her activism to meet the royal requirement to remain apolitical?

The new British Vogue provides one answer.

Meghan, now Duchess of Sussex, has become the first person to guest edit the magazine's September edition - generally considered the fashion bible's most important of the year - and used her stint to highlight women who are "forces for change."

Meghan declined to appear on the cover herself.

"She felt that it would be in some ways a 'boastful' thing to do for this particular project," British Vogue editor Edward Enninful writes. "She wanted, instead, to focus on women she admires."

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We are proud to announce that Her Royal Highness, The Duchess of Sussex is the Guest Editor for the September issue of @BritishVogue. For the past seven months, The Duchess has curated the content with British Vogue's Editor-in-Chief Edward Enninful to create an issue that highlights the power of the collective. They have named the issue: “Forces for Change” For the cover, The Duchess chose a diverse selection of women from all walks of life, each driving impact and raising the bar for equality, kindness, justice and open mindedness. The sixteenth space on the cover, a mirror, was included so that when you hold the issue in your hands, you see yourself as part of this collective. The women on the cover include: @AdwoaAboah @AdutAkech @SomaliBoxer @JacindaArdern @TheSineadBurke @Gemma_Chan @LaverneCox @JaneFonda @SalmaHayek @FrankieGoesToHayward @JameelaJamilOfficial @Chimamanda_Adichie @YaraShahidi @GretaThunberg @CTurlington We are excited to announce that within the issue you’ll find: an exclusive interview between The Duchess and former First Lady of the United States Michelle Obama, a candid conversation between The Duke of Sussex and Dr Jane Goodall, inspirational articles written by Brené Brown, Jameela Jamil and many others. Equally, you’ll find grassroots organisations and incredible trailblazers working tirelessly behind the scenes to change the world for the better. “Guest Editing the September issue of British Vogue has been rewarding, educational and inspiring. To deep dive into this process, working quietly behind the scenes for so many months, I am happy to now be able to share what we have created. A huge thanks to all of the friends who supported me in this endeavour, lending their time and energy to help within these pages and on the cover. Thank you for saying “Yes!” - and to Edward, thank you for this wonderful opportunity.” - The Duchess of Sussex #ForcesForChange

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The cover features 15 women, including teen climate activist Greta Thunberg, New Zealand Prime Minister Jacinda Ardern, actor and women's rights advocate Salma Hayek, actor and transgender activist Laverne Cox, and model Adut Akech, a former refugee from South Sudan.

A 16th spot represents a mirror, to suggest that readers can also effect change.

Inside, Meghan interviews former first lady Michelle Obama and Prince Harry talks to primatologist Jane Goodall.

Enninful pays tribute to Meghan in his editor's note, writing that her charity work "bears all the hallmarks of a true activist" and hailing "the gently modernising manner in which she has approached her new role."

"As you will see from her selections throughout the September issue, she is also willing to wade into more complex and nuanced areas, whether they concern female empowerment, mental health, race or privilege," he writes.

Some in the British media world say she went too far.

"MEG'S LEFTIE ISSUE" roared the Sun newspaper, which said she was celebrating women known for their "leftie views." The paper also noted that Meghan, who gave birth to baby Archie in May, had found time to guest-edit the magazine but was seemingly too busy to meet with President Donald Trump during his state visit to Britain in June.

In a piece headlined, "The cause Meghan Markle is mostly supporting is the Me, Myself and I Foundation," Daily Mail columnist Jan Moir also explained why she was unimpressed with the selection of women chosen.

Senior women in the royal family have worked with the magazine before. Catherine, Duchess of Cambridge, appeared on the cover in 2016, and Diana, Princess of Wales, also was featured on the cover several times.

Meghan said in a statement that she had worked on the project for the last seven months to "take the year's most read fashion issue and steer its focus to the values, causes and people making impact in the world today."

Meghan said: "I hope readers feel as inspired as I do, by the forces for change they'll find within these pages."

This article was written by Karla Adam, a reporter for The Washington Post.