gunboats

n.

炮舰，炮艇( gunboat的名词复数 )；

Gunboats down the Mississippi
Beyond the Gunboats
From gunboats to diplomacy :
guNBOatS fOr chINa’S New “graNd caNalS”?
Tigris gunboats : the forgotten war in Iraq 1914-1917
Trade and Gunboats: The United States and Brazil in the Age of Empire
Gunboats, reputation, and sovereign repayment: lessons from the Southern Confederacy
On gunboats and grand pianos: medical education exports and the long shadow of colonialism
Gunboats for China's New 'Grand Canals'? Probing the Intersection of Beijing's Naval and Oil Security Policies
The Report of the President's National Bipartisan Commission on Central America. ; From Gunboats to Diplomacy: New U.S. Policies for...