Deputy Prime Minister Vitaliy Yarema told reporters in Kyiv today that Ukraine cannot make military products for Russia that may later be used against his country. According to Yarema, the decision was made by Prime Minister Arseniy Yatsenyuk. Many facilities in Ukraine which are producing military equipment and machinery export their products to Russia.
I mentioned this vulnerability before (quoting the article that the post above mentions).
I guess the West won't sell Russia the rope that they'll use to hang us.