As a reminder, this is the situation at the start of the campaign with a date of 1st March 1808.
Napoleon starts to move his forces towards the French borders. He has split his army into 3 commands:
Army of the East (or the Grande Armee):
CinC Napoleon - Old and Middle Guards, Heavy Cav of Guard, Guard Arty, 2nd Corps minus 7th Div and 3rd Cav Corps.
Army of the West:
CinC Marshall Grouchy - 1st Corps, 4th Cav Corps, 7th Div, Young Guard, Guard Light Cav.
Army of the South:
CinC Marshall Soult - 6th Corps, 3rd Cav Div, 5th Cav Div