Girvin, pp .124 –125 Walshe's memoranda affected de Valera, with him telling MacDonald that Great Britain  could not destroy this [German] colossal machine  .Girvin, p .129 Nevertheless, from May 1940, Walshe and Col Liam Archer of Irish Military Intelligence discussed the defence of Ireland in the event of a German invasion with counterparts in Northern Ireland and a general strategic plan for UK military action "Plan W" across the border "if invited" was developed.
<fluency> Girvin, pp .124 –125 Walshe's memoranda affected de Valera, with him telling MacDonald that Great Britain  could not destroy this [German] colossal machine  .Girvin, p .129 Nevertheless, from May 1940, Walshe and Col Liam Archer of Irish Military Intelligence discussed the defence of Ireland in the event of a German invasion with counterparts in Northern Ireland and a general strategic plan for UK military action "Plan W" across the border "if invited" was developed.
Girvin, pp .124 –125 Walshe's memoranda affected de Valera, with him telling MacDonald that Great Britain could not destroy this [German] colossal machine " .Girvin, p .129 Nevertheless, from May 1940, Walshe and Col Liam Archer of Irish Military Intelligence discussed the defence of Ireland in the event of a German invasion with counterparts in Northern Ireland and a general strategic plan for UK military action "Plan W" across the border "if invited" was developed.