How did Henry 6 protect the kingdom from possible enemies?

Henry VI implemented several strategies to protect the kingdom from potential enemies, including forming strategic alliances through marriage and diplomacy. He sought to maintain peace and stability within England by managing the feudal lords and addressing their grievances. Additionally, Henry invested in strengthening the military and fortifying key locations to deter external threats, although his reign was often challenged by internal conflicts and the Wars of the Roses. His efforts were ultimately complicated by his periods of mental instability, which affected his leadership capacity.