(Reuters) – The Russian army, seeking contract soldiers for what it calls the “special military operation” in Ukraine, is using mobile recruiting trucks to attract volunteers, offering nearly $3,000 a month as an incentive. A special unit stationed one such truck in a central park in the southern Russian city of Rostov on Saturday and removed the sides to reveal a mobile office. Soldiers in camouflage and black masks showed their guns to interested passersby and handed out colour brochures titled “Military service on a contract – the choice of a real man.” Neither Russia nor Ukraine disclose t…