OTTAWA, Jan 19 (Reuters) - Canada fears armed conflict could break out in Ukraine and is working with allies to make clear to Russia that any more aggression towards Kiev is unacceptable, Prime Minister Justin Trudeau said on Wednesday. U.S. Secretary of State Antony Blinken said earlier that Russia could launch a new attack on Ukraine at "very short notice". Moscow, which has stationed military equipment and tens of thousands of troops near the border, denies it is planning an invasion and blames the West for rising tensions. "We do fear an armed conflict in Ukraine. We"re very worried about the position of the Russian government ... and the fact that they"re sending soldiers to the Ukrainian border," Trudeau told a news conference. Canada, with a sizeable and politically influential population of Ukrainian descent, has taken a strong line with Russia since its annexation of Crimea from Ukraine in 2014. "We"re working with our international partners and colleagues to make it very, very clear that Russian aggression and further incursion into Ukraine is absolutely unacceptable," Trudeau said. "We are standing there with diplomatic responses, with sanctions, with a full press on the international stage." Canadian troops are in Latvia as part of a NATO mission and Trudeau said they would "continue the important work that NATO is doing to protect its eastern front". Canada has had a 200-strong training mission in western Ukraine since 2015. Canadian Foreign Minister Melanie Joly on Tuesday said Ottawa would make a decision at the appropriate time on supplying military hardware to Ukraine. Trudeau side-stepped a question about sending defensive weapons, saying any decision would "be based on what is best for the people of Ukraine".