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| |||
| bolster the defence (Taras) | |||
| strengthen defence | |||
| bolster defence; ensure the defence | |||
| bolster defense (bigmaxus); shore up defenses (bigmaxus) | |||
| ensure the defense; strengthen the defense; sustain the defense (в расчёте на продолжительный период времени Киселев); bolster defenses; beef up defenses (MichaelBurov) | |||
| укреплять оборону: 5 phrases in 3 subjects |
| General | 3 |
| Makarov | 1 |
| Military | 1 |