However, in an interview with ITV, Begum said she did not understand why she is being treated differently to other IS supporters who have returned home.
A Home Office spokesman said the department did not comment on individual cases but decisions to remove citizenship were "based on all available evidence and not taken lightly".
"We are considering all legal avenues to challenge this decision", he said.
El Sheikh's mother, who has taken up a legal battle against the Home Secretary, said that putting him on trial in the U.S. would violate European Union laws as the death penalty is banned across the bloc.
The Home Office letter read: "Dear Mrs Begum".
A guest appearing on Good Morning Britain suggested on Wednesday (February 20) that ISIS bride Shamima Begum's family were let down by British police.
On whether Begun should be allowed to return to the UK, Klis said: "She's made her bed hasn't she". "I assure this house the majority have been assessed to pose no or a low-security status", he said.
"The officers will deal with whatever they are confronted with".
Shamima Begum, one of the three British schoolgirls who left the United Kingdom to live in ISIL's so-called caliphate, has said she will try to seek Dutch citizenship after being told the Home Office had issued an order to revoke her citizenship.
She said an "option" could be to apply for citizenship in The Netherlands, where her husband and the father of her newborn child - an Daesh fighter believed to be held by Kurdish forces in Syria - is from and has relatives.
If Ms Begum was able to reach a British consulate in a country with a recognised government, it is thought security chiefs could "manage" her return, while investigating her actions.
Nikita Malik, Director of the Centre on Radicalisation and Terrorism and the report's author, warned that the UK's courts are not now up to the task of handling a wave of women who joined the "caliphate" returning with their children.
There are plans to change the law to make travelling to certain terror hotspots illegal, but this could not be applied retrospectively to Shamima Begum. It's an unfair system balanced against her.
He was convicted in his absence previous year of membership of a terrorist group.
"All German citizens - including those who are suspected of fighting for the so-called Islamic state - have a fundamental right to travel back into Germany", a German foreign ministry source said Sunday.
Worldwide law forbids nations from making people stateless by revoking their only citizenship, while government guidance from 2017 states that the Home Secretary has the power to order the deprivation if it would be "conducive to the public good", and as long as they are not left without any citizenship. "Our position is that to all practical purposes she has been made stateless", he added.
"I would be very grateful if you could ensure the home secretary's decision is brought to her attention, along with her right to appeal", it added.
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Bernie Sanders attends a campaign event for Democratic gubernatorial candidate Christine Hallquist in Montpelier, Vermont. One quirk of the Democratic primary system that may have given Clinton an edge was the party's use of superdelegates.
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In an Instagram post, Alicia Keys and husband Swizz Beats posted a video about how they posed for a culture magazine together. Alicia Keys is still a superwoman slaying on red carpet relying only on good moisturizers, eyebrow gel and lipgloss.