Which civilizations have the Improved Warships card?

British, Dutch, French, Germans, Ottomans, Portuguese, Russians, Spanish, Swedes, Italians, Danes, Aztecs, Haudenosaunee, Inca, Japanese, Ethiopians, Hausa and Mexicans.

What does Improved Warships do in AoE3?

War Ship: hit points +25%, damage +25%; Ships 1 Spanish Treasure Chest; Ships 1 War Elephant. The game says: "All warships attack and hitpoints increased."

Home City card

Improved Warships

Improved Warships (tech ID HCNavalCombat) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 18 civilizations, sent from the Colonial Age and Industrial Age. Effect: War Ship: hit points +25%, damage +25%; Ships 1 Spanish Treasure Chest; Ships 1 War Elephant.

Quick answers (3)

Which civilizations have the Improved Warships card?: British, Dutch, French, Germans, Ottomans, Portuguese, Russians, Spanish, Swedes, Italians, Danes, Aztecs, Haudenosaunee, Inca, Japanese, Ethiopians, Hausa and Mexicans.
What does Improved Warships do in AoE3?: War Ship: hit points +25%, damage +25%; Ships 1 Spanish Treasure Chest; Ships 1 War Elephant. The game says: "All warships attack and hitpoints increased."
What is the tech ID of Improved Warships?: HCNavalCombat.