Following desertions Escaping from his German federated troops , hostile Germanic warbands learned Education_teaching that his force was under-strength and moved Motion to attack Attack the town .

As he advanced Cause_to_make_progress on London , desertions reduced Cause_change_of_position_on_a_scale the 30,000 strong Royal Army to 4,000 ; James ordered Arranging these remnants disbanded and went Motion into exile in December .