United States Navy historian Frank Chadwick believed that de Grasse could have thwarted the British fleet simply by staying put; his fleet's size would have been sufficient to impede any attempt by Graves to force a passage through his position. Historian Harold Larrabee points out that this would have exposed Clinton in New York to blockade by the French if Graves had successfully entered the bay; if Graves did not do so, Barras (carrying the siege equipment) would have been outnumbered by Graves if de Grasse did not sail out in support.