B5 Escort Group consisted of eight warships, led by Commander RC Boyle in the destroyer HMS Havelock, the destroyer USS Upshur, the River-class frigate HMS Swale, the Flower-class corvettes Buttercup, Godetia, Lavender, Pimpernel and Saxifrage, and a trawler as rescue vessel. Help was on its way in the form of the destroyer HMS Highlander, under Commander ECL Day. Stürmer ("Daredevil"), a new group of 18 boats, was to form up in the middle of the Air Gap. During the rest of the day, boats from Stürmer began to arrive. A further group, Dränger ("Harrier"), of eleven boats formed to the east of Stürmer. On the morning of 16 March U-653, which had detached from Raubgraf to return to base with mechanical problems, sighted HX 229 heading east and sent a sighting report. Raubgraf, ("Robber Baron"), of eight boats was already formed, having just been involved in a battle with HX 228; it was sent to patrol off east of Newfoundland, at the western edge of the Air Gap. It sailed on 5 March 1943, protected at first by one destroyer and five corvettes of the Western Local Escort Force. The western local group left, after the Mid-Ocean Escort Force B5 Escort Group joined from St John's.

A further 34 ships which should have been included were delayed due to congestion at New York; they sailed the following day as HX 229A. The first few days of the convoy were uneventful; HX 229 met its Mid-Ocean Escort Force on 14 March and the local escort departed. HX 229 was also eastbound and sailed from New York on 8 March, with 40 ships and the local escort. Raubgraf caught up with HX 229 on the evening of 16 March and mounted an attack that night. During the night of 17/18 March the attack on both convoys, now just 70 miles apart, continued. HX 229's escort suffered a blow as HMS Mansfield was forced to detach during the night of 17/18 March. At the north-eastern end of Stürmer's rake, German submarine U-338 had sighted SC 122 heading east, about 120 miles from HX 229's position. A message from a U-boat gave away its position once that position had been fixed by DF and the convoy SC 122 was diverted around the estimated danger area.

Also en route from Hvalfjord, in Iceland, were the destroyers HMS Vimy and USS Babbitt, for HX 229, and the US Coast Guard cutter USCGC Ingham for SC 122. These were dispatched on the morning of 18 March, and arrived the following day. During March, there was a series of fierce convoy battles which became, for the Allies, the crisis point of the whole campaign. There are various rules and guidelines that exist at each family planning clinic, but the role of abortion clinic escorts is to approach patients and inform them why they are there and that they work with the clinic. There are a number of online websites which share information regarding their personality, age, weight and other such factors. Models who are very intelligent and smart. These highlights were written by the reporters and editors who worked on this story. Marzenoski, with six of his shipmates, manned a lifeboat and, at great personal risk and by skillful maneuvering, overhauled the drifting and tossing wreckage and rescued the six soldiers who otherwise would have perished. After "abandon ship" orders were given Bohn, in the flaming sea for nearly an hour, succeeded in keeping afloat a portable radio set until picked up by a lifeboat.

On the afternoon of 18 March, U-221 succeeded in sinking two ships of HX 229 but further losses were avoided. Bredesen was the only crew member to respond, and without hesitation removed his clothes, swam to the ship, succeeded in closing the doors and then swam back to his boat. One ship from HX 229 was lost, a romper which broke away to proceed independently; this ship, Matthew Luckenbach, ran into the melée around SC 122 and was torpedoed, to be sunk later on 19 March. On 19 March the best london asian escorts were reinforced by the arrival of Vimy and Babitt, for HX 229, and Ingham for SC 122. HX 229 was also joined by the corvette HMS Abelia, detached from another convoy. Two more ships from HX 229 were lost during the day. The more northerly route took it into an icefield and two ships were damaged by icebergs, rerouting to Iceland. On 6 March, off Cape Cod, two ships put back to New York due to heavy weather, and on 8 March, another six abandoned the crossing, and put into Halifax.