New Delhi, July 10 -- President Donald Trump on Monday threatened Russia with steep tariffs and announced a rejuvenated pipeline for American weapons to reach Ukraine, hardening his stance toward Moscow after months of frustration about unsuccessful negotiations for ending the war.

The latest steps reflect an evolving approach from the Republican president, who promised to swiftly resolve the war started by Russian President Vladimir Putin when he invaded Ukraine three years ago. Trump once focused his criticism on Ukrainian President Volodymyr Zelenskyy, whom he described as unwilling to compromise, but more recently has expressed growing irritation toward Putin.

"My conversations with him are very pleasant, and then the missiles go of...