Exercise Mainbrace Force composition Naval Forces - Operation Mainbrace, 1952[ 
 citation needed 
 ]

| NATO_member | Aircraft_carriers | Battleships | Cruisers | Escorts | Submarines | Torpedo_boat_squadrons | s_Motor_ship_s_Naval_trawler | Grand_Total |
|---|---|---|---|---|---|---|---|---|
| United States | 6 | 1 | 3 | 40 | 9 | — | — | 59 |
| UK | 3 | 1 | 2 | 31 | 17 | 4 | 8 + Trawlers | 66 |
| Canada | 1 | — | 1 | 5 | — | — | — | 7 |
| France | — | — | — | 7 | — | — | 2 | 20 |
| Denmark | — | — | — | 3 | 2 | — | — | 7 |
| Norway | — | — | — | 2 | 2 | 3 | 3 | 26 |
| Portugal | — | — | — | 3 | — | — | — | 3 |
| Netherlands | — | — | — | 5 | 3 | — | 5 | 13 |
| Belgium | — | — | — | — | — | — | — | 2 |
| TOTALS: | 10 | 2 | 6 | 96 | 33 | 7 | 18 | 203 |