Why counter attack (with the majority of forces) right away? Russians have shown poorer abilities when organizing offensives compared to defending. The incursion into Russia by Ukraine forces the Russian military into attacking. This is as opposed to sitting behind a thousand minefields in unmoving lines inside Ukraine.
Ukraine can set up elaborate layered defenses and enjoy the defensive advantage to grind up more Russian military assets. This also gives Ukraine opportunities for small detachments to hit the Russian reinforcements on the move, which is something they’ve already been doing.
Why counter attack (with the majority of forces) right away? Russians have shown poorer abilities when organizing offensives compared to defending. The incursion into Russia by Ukraine forces the Russian military into attacking. This is as opposed to sitting behind a thousand minefields in unmoving lines inside Ukraine.
Ukraine can set up elaborate layered defenses and enjoy the defensive advantage to grind up more Russian military assets. This also gives Ukraine opportunities for small detachments to hit the Russian reinforcements on the move, which is something they’ve already been doing.