Greece modernizes Leopardy 2A4?

As reported by the Greek paper [Kathimerini](https://www.kathimerini.gr/politics/amina/564071275/stratos-xiras-anavathmizontai-ta-leopard/), The General Staff of the Greek Army plans to begin the process of upgrading the Leopard 2A4 tanks. Greece has 183 Leopard 2A4 tanks and 170 modern Leopard 2HEL tanks, which are an improved variant of Leopard 2A6.