"I believe it is necessary to own a mutual line, devoid of Germany taking part militarily", Merkel stated.
Russian Federation vetoed the USA -drafted resolution which envisaged establishing a new expert body to determine culpability for the suspected chemical attack in Eastern Ghouta's Douma district.
"Germany will not take part in possible - there have not been any decisions yet, I want to stress that - military action", she said after meeting Danish Prime Minister Lars Lokke Rasmussen in Berlin on Thursday.
She did not specify exactly how Germany might be supportive.
The White Helmets, a civil defense agency, blamed the Syrian regime for the suspected chemical attack in Douma on Saturday, which killed 78 civilians and injured hundreds of others.
Trump indicated that he may have backpaddled from his hawkish stance today, when he tweeted that the USA may militarily intervene in Syria "very soon or not so soon at all!"
The president on Wednesday had seemed to confirm future USA strikes in Syria when he tweeted that missiles fired at Syria "will be coming, nice and new and 'smart!'"
Meanwhile, French President Emmanuel Macron today claimed to possess evidence implicating Assad in last weekend's alleged chemical attack, but is yet to announce any immediate plans to strike Syria.
"We can't accept the use of chemical weapons, and the global community must ensure that red lines are respected", he said.
Macron said Thursday that France has proof that Assad was behind the attacks and did not rule out military action.
The catastrophe around Syria is being treated "with warning", Merkel stated.
Die Welt reported that a spokesman for Merkel said that she and Macron had expressed their "common concern about the recent use of toxic gas and about a threat of erosion of the global ban on chemical weapons".
But any further military role would require parliamentary approval.