Russian Federation requested the meeting and has demanded an "unbiased investigation" by the Organization for the Prohibition of Chemical Weapons (OPCW).
Moscow denies involvement in the attack on the Skripals.
The head of Britain's military research center said on Tuesday it was unable yet to say whether the military-grade nerve agent that poisoned a Russian double-agent last month had been produced in Russia.
Sergei Skripal - who settled in Britain after a 2010 spy swap - remains critically ill in hospital.
Former general Buzhinskiy, who served 41 years in the Russian military, says the response to the attack could cause "a real war", adding: 'Worse than the Cold War is a real war.
After the poisoning, Britain announced it would expel 23 Russian diplomats, the first in a series of moves in diplomatic retaliation against Moscow by western countries. The Trump administration expelled 60 Russians from the US alone.
'You expel diplomats, we expel diplomats, you further expel, what's the next step?
Russia's Foreign Minister Sergei Lavrov has said that Skripal's poisoning was "in the UK's interests" and accused the West of playing "children's games". Both the West and Russian Federation have expelled over 150 envoys each in the dispute.
"Not the Salisbury poisoning but all the actions".
Trump reiterated his long-standing call for better relations with Moscow, despite a series of conflagrations and crises, including Russian meddling in the USA election and the poisoning of a Russian double agent on British soil.
"There are other explanations besides those put forward by our Western colleagues, who declare that it can only be the Russians who are responsible".
He claimed that the poisoning "could also be advantageous to the British government, who find themselves in a hard situation having failed to fulfil their promises to voters over Brexit".
Deputy Foreign Minister Alexander Grushko in comments relayed by Russian news agencies on Tuesday called Skripal's poisoning a "provocation arranged by Britain" in order to justify high military spending because "they need a major enemy".
Late last week, Russian Foreign Minister Sergey Lavrov again demanded the United Kingdom give Russian diplomats access to Yulia, who is a Russian citizen.
Speaking to the BBC Sir Tony said: "What we have is not a Putin problem, what we have is a Russian Federation problem". His daughter Yulia has been taken off the critical list.
Evgeny Buzhinskiy has warned the expelling of diplomats over the attack on Sergei Skripal and his daughter Yulia is creating a situation which is "worse than the Cold War".
"If we got along with Russia, that would be a good thing not a bad thing", Trump said, days after congratulating the veteran Russian leader on his controversial re-election and suggesting they meet at the White House.