Following the suspected weekend chemical attack, the allies have vowed to intervene, even though no United Nations mandate for such action exists.
The White House press secretary, Sarah Huckabee Sanders, said in a brief statement after Trump met with Mattis and other members of his National Security Council: "No final decision has been made".
It came as Russian foreign minister Sergey Lavrov warned East-West relations are now worse than during the Cold War following the Syria strikes and the bitter diplomatic row over the Salisbury nerve agent attack.
The Russian Defense Ministry on Friday accused Britain of staging a fake chemical attack in a Syrian town outside Damascus, a bold charge vehemently denied by Britain as a "blatant lie".
Manfra and others said vulnerable network devices are ideal targets because these devices are often not patched or maintained properly, and a compromise gives attackers access to most Internet traffic within an organization and the organizations it communicates with.
"Russia vows to shoot down any and all missiles fired at Syria". Kremlin spokesman Dmitry Peskov said the British accusation that Russian Federation was to blame for holding up the inspections was "groundless".
"I call on the authorities for a swift and thorough investigation", he tweeted. This was at the very beginning after this information [of the attack] appeared.
Last week, at the NCSC's CyberUK conference in Manchester, GCHQ director Jeremy Fleming said GCHQ has monitored and countered the growing cyber threat the Russian Federation poses to the United Kingdom and its allies for more than two decades.
Monday's announcement is the latest in a series of related moves by the Trump administration, which in recent months has publicly blamed Russian Federation for launching the NotPetya worm that has been characterized as the costliest and most destructive cyberattack in history.
U.S. intelligence agencies past year accused Russian Federation of interfering in the 2016 election with a hacking and propaganda campaign supporting Donald Trump's campaign for president.
Biological samples from the area of the attack in Syria have tested positive for chlorine and a sarin-like nerve agent, according to a U.S. official who's familiar with the USA analysis of the test results.
The pope spoke after airstrikes by the United States, France and Britain aimed at taking out Syria's chemical weapons capacity.
Vassily Nebenzia, Russian Ambassador to the United Nations, addresses a Security Council meeting called by Russia on April 13, 2018 in response to the escalating situation over use of chemical weapons in Syria. There has been no other official Israeli response yet.
She added that the attacks were not about "regime change" or "intervening in a civil war", but were to "deter the use of chemical weapons" by the Syrian government.
A joint United Nations-OPCW mission concluded that troops under President Bashar al-Assad had used chemical weapons several times in recent years, including a sarin attack a year ago in the town of Khan Sheikhoun that killed almost 100 people.