KYIV, Jan 30 - Western allies must continue providing assistance to Ukraine in its war with Russia this year, or risk a mistake “of historic proportions,” CIA Director William Burns wrote in a column published Tuesday.

Burns laid out his case in a Foreign Affairs column, noting that less than 5 percent of the U.S. defense budget — “a relatively modest investment with significant geopolitical returns” — is all that Washington sends to Kyiv, POLITICO reported.