President Joe Biden formally announced plans to send 31 M1 tanks to the Ukrainian armed forces today. A satellite image showing rows of M1 Abrams tanks and other armored vehicles at Sierra Army Depot in California. The development of the original version of this armor, often referred to simply as "heavy armor" or "special armor," was conducted under a top-secret Special Access Program (SAP) nicknamed Green Grape. This is a complex process, as evidenced by recent publicly available contract documents related to the sale of Abrams tanks to Poland. DODSome sort of covert transfer arrangement might be possible, but would only add the complexity of actually getting any Abrams tanks to Ukraine.
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