Troops on hero

[Baris Han]

how can i get more troops on hero what mast i do
for example i have 4 stars Kings Gallant lila Crest 2029 troops , in front the same hero whit 3 star and blue Crest but he hes 2984 troops !!!!!!!
How is Posible i need HELLP

[cptcruch]

have you leveled up your research (which affects this)? Recruitment Fort? Heroes Fate?