Change: The above two trenches are on the left of the crest and provide an excellent defensive position. ISLAND TRENCH Island trench from right Island itself and left trench Communication trench Cross section and aerial view of the Island trench, complete with compass bearing 'L' SHAPED TRENCH Part of   View changes from previous version. (Word count: 130)

Change:  left trench Communication trench Cross section and aerial view of the Island trench, complete with compass bearing 'L' SHAPED TRENCH Part of L shaped trench. Some 200 foot long and turning through 90 degrees, each zig zag is 12 foot long - same as that of the J shaped trench   View changes from previous version. (Word count: 107)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 94)

Change:  J trench Island trench from right Island itself and left trench Communication trench Part of L shaped trench. Some 200 foot long and turning through 90 degrees, each zig zag is 12 foot long - same as that of the J shaped trench   View changes from previous version. (Word count: 42)