Trump said he has ordered "precision strikes" against Syria, where dozens of people were killed last weekend in a suspected toxic gas attack on Douma, the largest town in a former rebel stronghold outside Damascus.
She will repeat Saturday's assertion that Britain was "confident in our own assessment that the Syrian regime was highly likely responsible" and that it could not wait "to alleviate further humanitarian suffering caused by chemical weapons attacks", according to excerpts of her speech.
Britain's defense ministry said initial indications were that the precision weapons and meticulous target planning had "resulted in a successful attack". "We are prepared to sustain this response until the Syrian regime stops its use of prohibited chemical agents", he said.
But she will be grilled over why she broke with a convention to seek parliamentary approval for the action, a decision that she and her ministers say was driven by the need to act quickly.
Americans have two extra days to file their income taxes this year
You can go to your local tax preparer, submit it through an online tax preparer, or submit it through the IRS website . While 36% of respondents overall selected this answer, more women planned to pay off debt (40%) than men (33%).
"This collective action sends a clear message that the worldwide community will not stand by and tolerate the use of chemical weapons", May told a press conference. Russian Federation and Syria claim the attack was fabricated.
"I have done so because I judge this action to be in Britain's national interest", she added.
Syrians flooded the streets to celebrate the triumph of the country's army against a US-UK-French coalition strike, teleSUR correspondent Hisham Wannous reported..
Many politicians in Britain, including some in May's own Conservative Party, had called for parliament to be recalled from a break to give authority to any military strike.
US preparing new sanctions on Russia over Syria, Haley says
Russian president Vladimir Putin warned on Sunday that further western attacks on Syria would bring chaos to world affairs. Mr Nebenzia accused the US, UK and France of "hooliganism" and of "demonstrating a blatant disregard for global law".
Opposition Labour leader Jeremy Corbyn had said Britain should press for an independent United Nations -led investigation into the suspected chemical attack in Douma rather than wait for instructions from Trump on how to proceed.
The DUP has backed Prime Minister Theresa May's decision to authorise air strikes in Syria.
He also did not rule out future military action.
She said that at an emergency cabinet meeting in London on Thursday "we agreed that it was both right and legal to take military action" after hearing legal advice.
Pakistan pick five uncapped players for UK tour
Ali has been in stellar form in Pakistan's first-class circuit, having scored 3,473 runs in 50 games at an impressive 46.93. Pakistan are the opponents for Ireland's first Test match in Malahide, with the historic game getting underway on May 11.
Shortly after the military strikes were launched, Scotland's first minister Nicola Sturgeon said United Kingdom foreign policy should be set by Parliament and not Donald Trump after the U.S., United Kingdom and France bombed targets in Syria.