After the conclusion of peace, the English naval commanders took pleasure in vigorously enforcing their right to the “honour of the flag,” and, as above stated, notwithstanding the verbal limitation made by Cromwell and Thurloe, they did not confine the demand to the narrow sea. Within a few weeks of the proclamation of the treaty, and before its details were known to the fleet, Vice-Admiral Lawson encountered the “bellicose” De With off the north coast of Scotland. The Dutch admiral with three men-of-war was convoying seventy sail bound for Greenland, and he at once struck his flag and fired a salute, which the English returned. He also “submitted to a search,” though stating that it was not customary for men-of-war to do so. “De With,” wrote Lawson, “begins to know his duty, being very submissive, acknowledging the sovereignty of England in the seas, and yielding as much as could have been required of any merchant ships.”[802] In the south the Dutch were not always so compliant, and disputes with the English officers sometimes arose as to whether the place where the striking of the flag was demanded was or was not within the British seas. Thus, Captain Cockraine, in the _Old Warwick_, met a fleet of Holland merchantmen under convoy of a man-of-war between the Lizard and Ushant. The merchant vessels struck their top-sails, but the man-of-war refused to strike, on the ground that he was not in the British but in the Spanish seas. Cockraine refrained from firing, as the ship was surrounded by others and there was “much wind.” Instead, he wrote to the Admiralty. “I want to know,” he said, “how far is intended by the British Seas, and how far our power reaches, so that we may make no unnecessary broils.” There is nothing to show what answer he got; but a week later he encountered twenty-six Dutch merchant vessels bound for the Mediterranean, who refused to strike, and he had to fire thirty guns among them before they submitted.[803] About the same time, a States’ man-of-war convoying a fleet of Hollander merchantmen met Captain Heaton, in the _Sapphire_, and did not strike until a shot was fired. Heaton sent a message to the commander saying that he had not fulfilled the articles of peace, and that the keeping of his flag and top-sail aloft when within shot of one of the ships of the State of England was a great abuse, and a gross affront by the States of Holland to the Commonwealth. To which the Dutch captain replied that if he had shot back at the _Sapphire_ he would have been quite justified, as, being on his own coast, he was not bound to strike, and had done so not out of duty, but from “brotherly love,” and he then re-hoisted his top-sails and flag. Heaton deliberated whether or not he should fight the Dutchman for doing this, but refrained. He, too, wrote to the Admiralty asking how he should act in similar cases in future.[804]