How Much Has It Really Cost U.S. Taxpayers to Help Ukraine?

This YouTube video explains that much of the highly effective hardware we have provided Ukraine comes from obsolete stockpiles, or were weapons that had not ben upgraded to first line service.  In one case, we gave sent them M101 artillery first introduced in 1941.  Much of this stuff has been out of service since the 1980s and is still working well against Russia's not very good equipment. 

In addition,  decommissioning much of this stuff is not free.  Even with shipping costs, giving them this stuff might be a net win for taxpayers.