Learn Russian: Мы ценим ваше сильное лидерство и стратегию. - We value your strong leadership and strategy.

Why are лидерство and стратегию in the Accusative case? Since we are learning about leadership and control, shouldn't they involve the Instrumental case?

The case is decided by the active verb in the clause, which is ценим (from ценить, to value). It takes a standard direct object in the Accusative case. The rule you are currently learning applies to verbs of action or control like управлять (to manage) or владеть (to own), which force their objects into the Instrumental case. Nouns related to leadership do not automatically trigger the Instrumental case on their own.

Do the neuter modifiers ваше сильное apply to the feminine noun стратегию as well?

Grammatically, no. They only agree with the neuter noun лидерство. To be strictly correct in writing that both are yours and strong, you would need to repeat the adjectives in the feminine Accusative: ваше сильное лидерство и вашу сильную стратегию. However, in everyday speech, native speakers often let the first set of adjectives mentally carry over to the second noun.

Could we use руководство instead of лидерство in this sentence?

Yes, but it changes the nuance. Лидерство is about having the personal qualities of a leader, a strong vision, or holding a leading position in a market. Руководство leans more toward the practical, daily administration of a team, or it can refer collectively to the management board itself.

Why does the Accusative form of strategy end in -ию (стратегию)?