The combined effect raises their morale and encourages united efforts against the enemy.

Сочетатый резудътат укрепит их моралъное состояние и поощряет единый усили прoтив врагу.

Сочетатый - nominative adjective

резудътат - nominative masculine

укрепит - imperfective third person

их - accusative personal pronoun

моралъное состояние - neuter accusative

и

поощряет - present imperfective third person

единыe - accusative plural adjectives

усили - plural accusative

прoтив

врагу - singular dative (indirect object)

Спасибо!