Democrats were largely outraged by the decision, but even some Republicans voiced concerns that the move would only aid Russia.

LONDON (AP) — The U.S. has been Ukraine’s biggest military backer since Russia’s full-scale invasion began three years ago. The suspension of that aid by the Trump administration doesn’t mean Ukraine’s defenses will quickly collapse.

The directive, which takes effect immediately, affects more than $1 billion in arms and ammunition in the pipelines and on order.